1366150644 has 48 divisors (see below), whose sum is σ = 3576968640. Its totient is φ = 450871200.

The previous prime is 1366150633. The next prime is 1366150649. The reversal of 1366150644 is 4460516631.

It is a happy number.

1366150644 is a `hidden beast` number, since 1 + 3 + 6 + 6 + 1 + 5 + 0 + 644 = 666.

It is a super-2 number, since 2×1366150644² = 3732735164203229472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1366150599 and 1366150608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366150649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51714 + ... + 73529.

It is an arithmetic number, because the mean of its divisors is an integer number (74520180).

Almost surely, 2^1366150644 is an apocalyptic number.

It is an amenable number.

1366150644 is an abundant number, since it is smaller than the sum of its proper divisors (2210817996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1366150644 is a wasteful number, since it uses less digits than its factorization.

1366150644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125357 (or 125349 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1366150644 is about 36961.4751329002. The cubic root of 1366150644 is about 1109.5993586978.

The spelling of 1366150644 in words is "one billion, three hundred sixty-six million, one hundred fifty thousand, six hundred forty-four".