55061610061665 has 32 divisors (see below), whose sum is σ = 90261719396352. Its totient is φ = 28645372800000.

The previous prime is 55061610061663. The next prime is 55061610061687. The reversal of 55061610061665 is 56616001616055.

It is not a de Polignac number, because 55061610061665 - 2¹ = 55061610061663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55061610061663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3281836 + ... + 10995165.

It is an arithmetic number, because the mean of its divisors is an integer number (2820678731136).

Almost surely, 2^{55061610061665} is an apocalyptic number.

It is an amenable number.

55061610061665 is a deficient number, since it is larger than the sum of its proper divisors (35200109334687).

55061610061665 is a wasteful number, since it uses less digits than its factorization.

55061610061665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283321.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 55061610061665 in words is "fifty-five trillion, sixty-one billion, six hundred ten million, sixty-one thousand, six hundred sixty-five".