161529993410 has 16 divisors (see below), whose sum is σ = 290763725112. Its totient is φ = 64609833600.

The previous prime is 161529993397. The next prime is 161529993433. The reversal of 161529993410 is 14399925161.

It can be written as a sum of positive squares in 4 ways, for example, as 27346244689 + 134183748721 = 165367^2 + 366311^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62600 + ... + 571820.

Almost surely, 2^161529993410 is an apocalyptic number.

161529993410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161529993410 is a deficient number, since it is larger than the sum of its proper divisors (129233731702).

161529993410 is a wasteful number, since it uses less digits than its factorization.

161529993410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540949.

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 161529993410 in words is "one hundred sixty-one billion, five hundred twenty-nine million, nine hundred ninety-three thousand, four hundred ten".