161310015462750 has 128 divisors (see below), whose sum is σ = 501980008817664. Its totient is φ = 33518964240000.

The previous prime is 161310015462733. The next prime is 161310015462781. The reversal of 161310015462750 is 57264510013161.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1396565761 + ... + 1396681260.

It is an arithmetic number, because the mean of its divisors is an integer number (3921718818888).

Almost surely, 2^{161310015462750} is an apocalyptic number.

161310015462750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161310015462750 is an abundant number, since it is smaller than the sum of its proper divisors (340669993354914).

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

161310015462750 is a wasteful number, since it uses less digits than its factorization.

161310015462750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793247059 (or 2793247049 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 161310015462750 in words is "one hundred sixty-one trillion, three hundred ten billion, fifteen million, four hundred sixty-two thousand, seven hundred fifty".