155906812251254 has 16 divisors (see below), whose sum is σ = 233976676792320. Its totient is φ = 77914590281640.

The previous prime is 155906812251251. The next prime is 155906812251283. The reversal of 155906812251254 is 452152218609551.

155906812251254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155906812251254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155906812251251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86091887 + ... + 87884165.

It is an arithmetic number, because the mean of its divisors is an integer number (14623542299520).

Almost surely, 2^{155906812251254} is an apocalyptic number.

155906812251254 is a deficient number, since it is larger than the sum of its proper divisors (78069864541066).

155906812251254 is a wasteful number, since it uses less digits than its factorization.

155906812251254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813915.

The product of its (nonzero) digits is 8640000, while the sum is 56.

The spelling of 155906812251254 in words is "one hundred fifty-five trillion, nine hundred six billion, eight hundred twelve million, two hundred fifty-one thousand, two hundred fifty-four".