45155566215 has 24 divisors (see below), whose sum is σ = 78310290240. Its totient is φ = 24070463424.

The previous prime is 45155566199. The next prime is 45155566241. The reversal of 45155566215 is 51266555154.

It is a happy number.

45155566215 is a `hidden beast` number, since 4 + 5 + 15 + 5 + 5 + 6 + 621 + 5 = 666.

It is not a de Polignac number, because 45155566215 - 2⁴ = 45155566199 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172575 + ... + 346544.

It is an arithmetic number, because the mean of its divisors is an integer number (3262928760).

Almost surely, 2^45155566215 is an apocalyptic number.

45155566215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45155566215 is a deficient number, since it is larger than the sum of its proper divisors (33154724025).

45155566215 is a wasteful number, since it uses less digits than its factorization.

45155566215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521063 (or 521060 counting only the distinct ones).

The product of its digits is 900000, while the sum is 45.

The spelling of 45155566215 in words is "forty-five billion, one hundred fifty-five million, five hundred sixty-six thousand, two hundred fifteen".