161754748752 has 20 divisors (see below), whose sum is σ = 417866434400. Its totient is φ = 53918249568.

The previous prime is 161754748747. The next prime is 161754748759. The reversal of 161754748752 is 257847457161.

It is a junction number, because it is equal to n+sod(n) for n = 161754748692 and 161754748701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161754748759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684945252 + ... + 1684945347.

It is an arithmetic number, because the mean of its divisors is an integer number (20893321720).

Almost surely, 2^161754748752 is an apocalyptic number.

161754748752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161754748752 is an abundant number, since it is smaller than the sum of its proper divisors (256111685648).

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

161754748752 is a wasteful number, since it uses less digits than its factorization.

161754748752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369890610 (or 3369890604 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 57.

The spelling of 161754748752 in words is "one hundred sixty-one billion, seven hundred fifty-four million, seven hundred forty-eight thousand, seven hundred fifty-two".