16264565040 has 80 divisors (see below), whose sum is σ = 53386056288. Its totient is φ = 4082085888.

The previous prime is 16264565033. The next prime is 16264565047. The reversal of 16264565040 is 4056546261.

It is an interprime number because it is at equal distance from previous prime (16264565033) and next prime (16264565047).

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 16264565040.

It is not an unprimeable number, because it can be changed into a prime (16264565047) 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, 1989127 + ... + 1997286.

Almost surely, 2^16264565040 is an apocalyptic number.

16264565040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16264565040 is an abundant number, since it is smaller than the sum of its proper divisors (37121491248).

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

16264565040 is a wasteful number, since it uses less digits than its factorization.

16264565040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986446 (or 3986440 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 16264565040 in words is "sixteen billion, two hundred sixty-four million, five hundred sixty-five thousand, forty".