61460520020 has 24 divisors (see below), whose sum is σ = 133230547968. Its totient is φ = 23791168800.

The previous prime is 61460520007. The next prime is 61460520041. The reversal of 61460520020 is 2002506416.

61460520020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61460520020² (a number of 22 digits) contains 22 as substring.

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, 49564316 + ... + 49565555.

It is an arithmetic number, because the mean of its divisors is an integer number (5551272832).

Almost surely, 2^61460520020 is an apocalyptic number.

It is an amenable number.

61460520020 is an abundant number, since it is smaller than the sum of its proper divisors (71770027948).

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

61460520020 is a wasteful number, since it uses less digits than its factorization.

61460520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99129911 (or 99129909 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 61460520020 in words is "sixty-one billion, four hundred sixty million, five hundred twenty thousand, twenty".