61016610555 has 32 divisors (see below), whose sum is σ = 108784872000. Its totient is φ = 32448923136.

The previous prime is 61016610547. The next prime is 61016610563. The reversal of 61016610555 is 55501661016.

It is an interprime number because it is at equal distance from previous prime (61016610547) and next prime (61016610563).

It is not a de Polignac number, because 61016610555 - 2³ = 61016610547 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, 600414 + ... + 694643.

It is an arithmetic number, because the mean of its divisors is an integer number (3399527250).

Almost surely, 2^61016610555 is an apocalyptic number.

61016610555 is a deficient number, since it is larger than the sum of its proper divisors (47768261445).

61016610555 is a wasteful number, since it uses less digits than its factorization.

61016610555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295420 (or 1295414 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 61016610555 in words is "sixty-one billion, sixteen million, six hundred ten thousand, five hundred fifty-five".