161320527260 has 24 divisors (see below), whose sum is σ = 358700937840. Its totient is φ = 60732433664.

The previous prime is 161320527257. The next prime is 161320527283. The reversal of 161320527260 is 62725023161.

It is a self number, because there is not a number n which added to its sum of digits gives 161320527260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237235730 + ... + 237236409.

It is an arithmetic number, because the mean of its divisors is an integer number (14945872410).

Almost surely, 2^161320527260 is an apocalyptic number.

161320527260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161320527260 is an abundant number, since it is smaller than the sum of its proper divisors (197380410580).

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

161320527260 is a wasteful number, since it uses less digits than its factorization.

161320527260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474472165 (or 474472163 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 161320527260 in words is "one hundred sixty-one billion, three hundred twenty million, five hundred twenty-seven thousand, two hundred sixty".