163512042460440 has 64 divisors (see below), whose sum is σ = 490723570481760. Its totient is φ = 43586549713920.

The previous prime is 163512042460439. The next prime is 163512042460447. The reversal of 163512042460440 is 44064240215361.

It is a junction number, because it is equal to n+sod(n) for n = 163512042460392 and 163512042460401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163512042460447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260022291 + ... + 260650370.

Almost surely, 2^{163512042460440} is an apocalyptic number.

163512042460440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163512042460440 is an abundant number, since it is smaller than the sum of its proper divisors (327211528021320).

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

163512042460440 is a wasteful number, since it uses less digits than its factorization.

163512042460440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520675292 (or 520675288 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 163512042460440 in words is "one hundred sixty-three trillion, five hundred twelve billion, forty-two million, four hundred sixty thousand, four hundred forty".