155013211554 has 16 divisors (see below), whose sum is σ = 310081469760. Its totient is φ = 51661896080.

The previous prime is 155013211547. The next prime is 155013211559. The reversal of 155013211554 is 455112310551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155013211559) 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, 2256957 + ... + 2324624.

It is an arithmetic number, because the mean of its divisors is an integer number (19380091860).

Almost surely, 2^155013211554 is an apocalyptic number.

155013211554 is an abundant number, since it is smaller than the sum of its proper divisors (155068258206).

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

155013211554 is a wasteful number, since it uses less digits than its factorization.

155013211554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587225.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 155013211554 in words is "one hundred fifty-five billion, thirteen million, two hundred eleven thousand, five hundred fifty-four".