15553370145 has 32 divisors (see below), whose sum is σ = 25240142592. Its totient is φ = 8177006592.

The previous prime is 15553370117. The next prime is 15553370177. The reversal of 15553370145 is 54107335551.

It is not a de Polignac number, because 15553370145 - 2⁸ = 15553369889 is a prime.

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, 3169764 + ... + 3174666.

It is an arithmetic number, because the mean of its divisors is an integer number (788754456).

Almost surely, 2^15553370145 is an apocalyptic number.

15553370145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15553370145 is a deficient number, since it is larger than the sum of its proper divisors (9686772447).

15553370145 is a wasteful number, since it uses less digits than its factorization.

15553370145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881.

The product of its (nonzero) digits is 157500, while the sum is 39.

The spelling of 15553370145 in words is "fifteen billion, five hundred fifty-three million, three hundred seventy thousand, one hundred forty-five".