55165511015 has 8 divisors (see below), whose sum is σ = 66545203968. Its totient is φ = 43901348320.

The previous prime is 55165510987. The next prime is 55165511039. The reversal of 55165511015 is 51011556155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55165511015 - 2¹² = 55165506919 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 7 ways as a sum of consecutive naturals, for example, 28881512 + ... + 28883421.

It is an arithmetic number, because the mean of its divisors is an integer number (8318150496).

Almost surely, 2^55165511015 is an apocalyptic number.

55165511015 is a deficient number, since it is larger than the sum of its proper divisors (11379692953).

55165511015 is a wasteful number, since it uses less digits than its factorization.

55165511015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57765129.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 55165511015 in words is "fifty-five billion, one hundred sixty-five million, five hundred eleven thousand, fifteen".