161457238732592 has 160 divisors (see below), whose sum is σ = 357532356464640. Its totient is φ = 69963038208000.

The previous prime is 161457238732583. The next prime is 161457238732607. The reversal of 161457238732592 is 295237832754161.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461964884 + ... + 462314252.

It is an arithmetic number, because the mean of its divisors is an integer number (2234577227904).

Almost surely, 2^{161457238732592} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161457238732592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178766178232320).

161457238732592 is an abundant number, since it is smaller than the sum of its proper divisors (196075117732048).

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

161457238732592 is a wasteful number, since it uses less digits than its factorization.

161457238732592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350683 (or 350677 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 65.

The spelling of 161457238732592 in words is "one hundred sixty-one trillion, four hundred fifty-seven billion, two hundred thirty-eight million, seven hundred thirty-two thousand, five hundred ninety-two".