1631413667 has 16 divisors (see below), whose sum is σ = 1837674048. Its totient is φ = 1437004800.

The previous prime is 1631413649. The next prime is 1631413717. The reversal of 1631413667 is 7663141361.

It is a cyclic number.

It is not a de Polignac number, because 1631413667 - 2⁶ = 1631413603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1631413667.

It is not an unprimeable number, because it can be changed into a prime (1631413607) 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, 123167 + ... + 135767.

It is an arithmetic number, because the mean of its divisors is an integer number (114854628).

Almost surely, 2^1631413667 is an apocalyptic number.

1631413667 is a deficient number, since it is larger than the sum of its proper divisors (206260381).

1631413667 is a wasteful number, since it uses less digits than its factorization.

1631413667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13070.

The product of its digits is 54432, while the sum is 38.

The square root of 1631413667 is about 40390.7621492836. The cubic root of 1631413667 is about 1177.2120495610.

The spelling of 1631413667 in words is "one billion, six hundred thirty-one million, four hundred thirteen thousand, six hundred sixty-seven".