1256036466 has 16 divisors (see below), whose sum is σ = 2659842144. Its totient is φ = 394050624.

The previous prime is 1256036461. The next prime is 1256036519. The reversal of 1256036466 is 6646306521.

It is not an unprimeable number, because it can be changed into a prime (1256036461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6156940 + ... + 6157143.

It is an arithmetic number, because the mean of its divisors is an integer number (166240134).

Almost surely, 2^1256036466 is an apocalyptic number.

1256036466 is an abundant number, since it is smaller than the sum of its proper divisors (1403805678).

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

1256036466 is a wasteful number, since it uses less digits than its factorization.

1256036466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12314105.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 1256036466 is about 35440.6047634631. The cubic root of 1256036466 is about 1078.9485840826.

The spelling of 1256036466 in words is "one billion, two hundred fifty-six million, thirty-six thousand, four hundred sixty-six".