61151427556830 has 64 divisors (see below), whose sum is σ = 175614356070720. Its totient is φ = 15052659090048.

The previous prime is 61151427556801. The next prime is 61151427556883. The reversal of 61151427556830 is 3865572415116.

61151427556830 is a `hidden beast` number, since 6 + 1 + 1 + 5 + 1 + 4 + 2 + 7 + 556 + 83 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8711026057 + ... + 8711033076.

It is an arithmetic number, because the mean of its divisors is an integer number (2743974313605).

Almost surely, 2^{61151427556830} is an apocalyptic number.

61151427556830 is an abundant number, since it is smaller than the sum of its proper divisors (114462928513890).

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

61151427556830 is a wasteful number, since it uses less digits than its factorization.

61151427556830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17422059162 (or 17422059156 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 61151427556830 in words is "sixty-one trillion, one hundred fifty-one billion, four hundred twenty-seven million, five hundred fifty-six thousand, eight hundred thirty".