161513351600 has 30 divisors (see below), whose sum is σ = 388035828180. Its totient is φ = 64605340480.

The previous prime is 161513351581. The next prime is 161513351621. The reversal of 161513351600 is 6153315161.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201891290 + ... + 201892089.

It is an arithmetic number, because the mean of its divisors is an integer number (12934527606).

Almost surely, 2^161513351600 is an apocalyptic number.

161513351600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161513351600 is an abundant number, since it is smaller than the sum of its proper divisors (226522476580).

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

161513351600 is a wasteful number, since it uses less digits than its factorization.

161513351600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403783397 (or 403783386 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

Adding to 161513351600 its reverse (6153315161), we get a palindrome (167666666761).

The spelling of 161513351600 in words is "one hundred sixty-one billion, five hundred thirteen million, three hundred fifty-one thousand, six hundred".