61104166015 has 8 divisors (see below), whose sum is σ = 73327691088. Its totient is φ = 48881538240.

The previous prime is 61104165977. The next prime is 61104166021. The reversal of 61104166015 is 51066140116.

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

It is not a de Polignac number, because 61104166015 - 2²⁷ = 60969948287 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, 64102 + ... + 355411.

It is an arithmetic number, because the mean of its divisors is an integer number (9165961386).

Almost surely, 2^61104166015 is an apocalyptic number.

61104166015 is a deficient number, since it is larger than the sum of its proper divisors (12223525073).

61104166015 is a wasteful number, since it uses less digits than its factorization.

61104166015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448649.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 61104166015 in words is "sixty-one billion, one hundred four million, one hundred sixty-six thousand, fifteen".