15554482155 has 24 divisors (see below), whose sum is σ = 27166922640. Its totient is φ = 8232394560.

The previous prime is 15554482147. The next prime is 15554482201. The reversal of 15554482155 is 55128445551.

15554482155 is a `hidden beast` number, since 1 + 5 + 55 + 448 + 2 + 155 = 666.

It is not a de Polignac number, because 15554482155 - 2³ = 15554482147 is a prime.

It is a super-2 number, since 2×15554482155² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 15554482155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1313400 + ... + 1325189.

It is an arithmetic number, because the mean of its divisors is an integer number (1131955110).

Almost surely, 2^15554482155 is an apocalyptic number.

15554482155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15554482155 is a deficient number, since it is larger than the sum of its proper divisors (11612440485).

15554482155 is a wasteful number, since it uses less digits than its factorization.

15554482155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638731 (or 2638728 counting only the distinct ones).

The product of its digits is 800000, while the sum is 45.

The spelling of 15554482155 in words is "fifteen billion, five hundred fifty-four million, four hundred eighty-two thousand, one hundred fifty-five".