155405405154 has 64 divisors (see below), whose sum is σ = 319083577344. Its totient is φ = 50435294976.

The previous prime is 155405405149. The next prime is 155405405161. The reversal of 155405405154 is 451504504551.

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, 46764937 + ... + 46768259.

It is an arithmetic number, because the mean of its divisors is an integer number (4985680896).

Almost surely, 2^155405405154 is an apocalyptic number.

155405405154 is an abundant number, since it is smaller than the sum of its proper divisors (163678172190).

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

155405405154 is a wasteful number, since it uses less digits than its factorization.

155405405154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191.

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 155405405154 in words is "one hundred fifty-five billion, four hundred five million, four hundred five thousand, one hundred fifty-four".