155161656370 has 32 divisors (see below), whose sum is σ = 319209578496. Its totient is φ = 53194968000.

The previous prime is 155161656343. The next prime is 155161656383. The reversal of 155161656370 is 73656161551.

It is a self number, because there is not a number n which added to its sum of digits gives 155161656370.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1238095 + ... + 1357645.

It is an arithmetic number, because the mean of its divisors is an integer number (9975299328).

Almost surely, 2^155161656370 is an apocalyptic number.

155161656370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155161656370 is an abundant number, since it is smaller than the sum of its proper divisors (164047922126).

155161656370 is a wasteful number, since it uses less digits than its factorization.

155161656370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138106.

The product of its (nonzero) digits is 567000, while the sum is 46.

The spelling of 155161656370 in words is "one hundred fifty-five billion, one hundred sixty-one million, six hundred fifty-six thousand, three hundred seventy".