161570769264 has 60 divisors (see below), whose sum is σ = 453783022992. Its totient is φ = 53665248000.

The previous prime is 161570769253. The next prime is 161570769299. The reversal of 161570769264 is 462967075161.

161570769264 is a `hidden beast` number, since 1 + 6 + 1 + 570 + 7 + 6 + 9 + 2 + 64 = 666.

161570769264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161570769264² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161570769264.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1956012 + ... + 2036939.

Almost surely, 2^161570769264 is an apocalyptic number.

It is an amenable number.

161570769264 is an abundant number, since it is smaller than the sum of its proper divisors (292212253728).

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

161570769264 is a wasteful number, since it uses less digits than its factorization.

161570769264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993246 (or 3993237 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 161570769264 in words is "one hundred sixty-one billion, five hundred seventy million, seven hundred sixty-nine thousand, two hundred sixty-four".