155401630790 has 32 divisors (see below), whose sum is σ = 319708710720. Its totient is φ = 53276333184.

The previous prime is 155401630777. The next prime is 155401630847. The reversal of 155401630790 is 97036104551.

It is a congruent number.

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, 875624 + ... + 1038036.

It is an arithmetic number, because the mean of its divisors is an integer number (9990897210).

Almost surely, 2^155401630790 is an apocalyptic number.

155401630790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155401630790 is an abundant number, since it is smaller than the sum of its proper divisors (164307079930).

155401630790 is a wasteful number, since it uses less digits than its factorization.

155401630790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176096.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 155401630790 in words is "one hundred fifty-five billion, four hundred one million, six hundred thirty thousand, seven hundred ninety".