61858980366 has 16 divisors (see below), whose sum is σ = 123725781504. Its totient is φ = 20618356664.

The previous prime is 61858980269. The next prime is 61858980383. The reversal of 61858980366 is 66308985816.

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, 220416 + ... + 415091.

It is an arithmetic number, because the mean of its divisors is an integer number (7732861344).

Almost surely, 2^61858980366 is an apocalyptic number.

61858980366 is an abundant number, since it is smaller than the sum of its proper divisors (61866801138).

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

61858980366 is a wasteful number, since it uses less digits than its factorization.

61858980366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651735.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 61858980366 in words is "sixty-one billion, eight hundred fifty-eight million, nine hundred eighty thousand, three hundred sixty-six".