151661511055 has 16 divisors (see below), whose sum is σ = 186630310944. Its totient is φ = 118250455680.

The previous prime is 151661511049. The next prime is 151661511119. The reversal of 151661511055 is 550115166151.

It is not a de Polignac number, because 151661511055 - 2³ = 151661511047 is a prime.

It is a Duffinian number.

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, 665964 + ... + 864193.

It is an arithmetic number, because the mean of its divisors is an integer number (11664394434).

Almost surely, 2^151661511055 is an apocalyptic number.

151661511055 is a deficient number, since it is larger than the sum of its proper divisors (34968799889).

151661511055 is a wasteful number, since it uses less digits than its factorization.

151661511055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530666.

The product of its (nonzero) digits is 22500, while the sum is 37.

The spelling of 151661511055 in words is "one hundred fifty-one billion, six hundred sixty-one million, five hundred eleven thousand, fifty-five".