15151151555 has 16 divisors (see below), whose sum is σ = 18253880064. Its totient is φ = 12072652800.

The previous prime is 15151151549. The next prime is 15151151557. The reversal of 15151151555 is 55515115151.

It is a de Polignac number, because none of the positive numbers 2^k-15151151555 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15151151557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502542 + ... + 2508588.

It is an arithmetic number, because the mean of its divisors is an integer number (1140867504).

Almost surely, 2^15151151555 is an apocalyptic number.

15151151555 is a deficient number, since it is larger than the sum of its proper divisors (3102728509).

15151151555 is a wasteful number, since it uses less digits than its factorization.

15151151555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7966.

The product of its digits is 15625, while the sum is 35.

The spelling of 15151151555 in words is "fifteen billion, one hundred fifty-one million, one hundred fifty-one thousand, five hundred fifty-five".