16429975636 has 12 divisors (see below), whose sum is σ = 29743921620. Its totient is φ = 7931712320.

The previous prime is 16429975631. The next prime is 16429975663. The reversal of 16429975636 is 63657992461.

It can be written as a sum of positive squares in 2 ways, for example, as 13143246736 + 3286728900 = 114644^2 + 57330^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16429975631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70818745 + ... + 70818976.

It is an arithmetic number, because the mean of its divisors is an integer number (2478660135).

Almost surely, 2^16429975636 is an apocalyptic number.

It is an amenable number.

16429975636 is a deficient number, since it is larger than the sum of its proper divisors (13313945984).

16429975636 is a wasteful number, since it uses less digits than its factorization.

16429975636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141637754 (or 141637752 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 58.

The spelling of 16429975636 in words is "sixteen billion, four hundred twenty-nine million, nine hundred seventy-five thousand, six hundred thirty-six".