61604177067 has 24 divisors (see below), whose sum is σ = 89221616640. Its totient is φ = 40959800880.

The previous prime is 61604177059. The next prime is 61604177081. The reversal of 61604177067 is 76077140616.

61604177067 is a `hidden beast` number, since 6 + 160 + 417 + 70 + 6 + 7 = 666.

It is not a de Polignac number, because 61604177067 - 2³ = 61604177059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61604677067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10390858 + ... + 10396784.

It is an arithmetic number, because the mean of its divisors is an integer number (3717567360).

Almost surely, 2^61604177067 is an apocalyptic number.

61604177067 is a deficient number, since it is larger than the sum of its proper divisors (27617439573).

61604177067 is a wasteful number, since it uses less digits than its factorization.

61604177067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823 (or 8820 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 61604177067 in words is "sixty-one billion, six hundred four million, one hundred seventy-seven thousand, sixty-seven".