61514606620 has 24 divisors (see below), whose sum is σ = 129792913488. Its totient is φ = 24489225600.

The previous prime is 61514606603. The next prime is 61514606627. The reversal of 61514606620 is 2660641516.

It is a super-2 number, since 2×61514606620² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61514606620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61514606627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7284241 + ... + 7292680.

It is an arithmetic number, because the mean of its divisors is an integer number (5408038062).

Almost surely, 2^61514606620 is an apocalyptic number.

It is an amenable number.

61514606620 is an abundant number, since it is smaller than the sum of its proper divisors (68278306868).

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

61514606620 is a wasteful number, since it uses less digits than its factorization.

61514606620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14577141 (or 14577139 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 61514606620 in words is "sixty-one billion, five hundred fourteen million, six hundred six thousand, six hundred twenty".