61670232558 has 24 divisors (see below), whose sum is σ = 145766004696. Its totient is φ = 18687949200.

The previous prime is 61670232541. The next prime is 61670232601. The reversal of 61670232558 is 85523207616.

61670232558 is a `hidden beast` number, since 6 + 1 + 6 + 70 + 23 + 2 + 558 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155732713 + ... + 155733108.

It is an arithmetic number, because the mean of its divisors is an integer number (6073583529).

Almost surely, 2^61670232558 is an apocalyptic number.

61670232558 is an abundant number, since it is smaller than the sum of its proper divisors (84095772138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61670232558 is a wasteful number, since it uses less digits than its factorization.

61670232558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311465840 (or 311465837 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 61670232558 in words is "sixty-one billion, six hundred seventy million, two hundred thirty-two thousand, five hundred fifty-eight".