61056016020 has 36 divisors (see below), whose sum is σ = 185203249140. Its totient is φ = 16281604224.

The previous prime is 61056015989. The next prime is 61056016031. The reversal of 61056016020 is 2061065016.

It is a happy number.

61056016020 is a `hidden beast` number, since 6 + 1 + 0 + 56 + 0 + 1 + 602 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25908765444 + 35147250576 = 160962^2 + 187476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 169599865 + ... + 169600224.

Almost surely, 2^61056016020 is an apocalyptic number.

61056016020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61056016020 is an abundant number, since it is smaller than the sum of its proper divisors (124147233120).

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

61056016020 is a wasteful number, since it uses less digits than its factorization.

61056016020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339200104 (or 339200099 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 61056016020 in words is "sixty-one billion, fifty-six million, sixteen thousand, twenty".