161535413454 has 32 divisors (see below), whose sum is σ = 341783520000. Its totient is φ = 50754838464.

The previous prime is 161535413447. The next prime is 161535413509. The reversal of 161535413454 is 454314535161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3537559 + ... + 3582930.

It is an arithmetic number, because the mean of its divisors is an integer number (10680735000).

Almost surely, 2^161535413454 is an apocalyptic number.

161535413454 is an abundant number, since it is smaller than the sum of its proper divisors (180248106546).

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

161535413454 is a wasteful number, since it uses less digits than its factorization.

161535413454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120712.

The product of its digits is 432000, while the sum is 42.

The spelling of 161535413454 in words is "one hundred sixty-one billion, five hundred thirty-five million, four hundred thirteen thousand, four hundred fifty-four".