61005055004 has 12 divisors (see below), whose sum is σ = 106761382728. Its totient is φ = 30501802800.

The previous prime is 61005054949. The next prime is 61005055057. The reversal of 61005055004 is 40055050016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37574 + ... + 351314.

It is an arithmetic number, because the mean of its divisors is an integer number (8896781894).

Almost surely, 2^61005055004 is an apocalyptic number.

It is an amenable number.

61005055004 is a deficient number, since it is larger than the sum of its proper divisors (45756327724).

61005055004 is a wasteful number, since it uses less digits than its factorization.

61005055004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362356 (or 362354 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 61005055004 in words is "sixty-one billion, five million, fifty-five thousand, four".