161562765300 has 36 divisors (see below), whose sum is σ = 467454935136. Its totient is φ = 43083404000.

The previous prime is 161562765293. The next prime is 161562765307. The reversal of 161562765300 is 3567265161.

161562765300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161562765293) and next prime (161562765307).

It is a super-2 number, since 2×161562765300² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161562765307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269270976 + ... + 269271575.

Almost surely, 2^161562765300 is an apocalyptic number.

161562765300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161562765300 is an abundant number, since it is smaller than the sum of its proper divisors (305892169836).

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

161562765300 is a wasteful number, since it uses less digits than its factorization.

161562765300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538542568 (or 538542561 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 161562765300 in words is "one hundred sixty-one billion, five hundred sixty-two million, seven hundred sixty-five thousand, three hundred".