163540031535530 has 64 divisors (see below), whose sum is σ = 317339074110240. Its totient is φ = 60322498827264.

The previous prime is 163540031535473. The next prime is 163540031535613. The reversal of 163540031535530 is 35535130045361.

It is a happy number.

163540031535530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 17795716939009 + 145744314596521 = 4218497^2 + 12072461^2 .

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, 1252951832 + ... + 1253082348.

Almost surely, 2^{163540031535530} is an apocalyptic number.

163540031535530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163540031535530 is a deficient number, since it is larger than the sum of its proper divisors (153799042574710).

163540031535530 is a wasteful number, since it uses less digits than its factorization.

163540031535530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140283.

The product of its (nonzero) digits is 1215000, while the sum is 44.

The spelling of 163540031535530 in words is "one hundred sixty-three trillion, five hundred forty billion, thirty-one million, five hundred thirty-five thousand, five hundred thirty".