6615700457020 has 24 divisors (see below), whose sum is σ = 13903440473664. Its totient is φ = 2644285989696.

The previous prime is 6615700456997. The next prime is 6615700457027. The reversal of 6615700457020 is 207540075166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6615700457027) 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, 124609867 + ... + 124662946.

It is an arithmetic number, because the mean of its divisors is an integer number (579310019736).

Almost surely, 2^{6615700457020} is an apocalyptic number.

It is an amenable number.

6615700457020 is an abundant number, since it is smaller than the sum of its proper divisors (7287740016644).

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

6615700457020 is a wasteful number, since it uses less digits than its factorization.

6615700457020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249274149 (or 249274147 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 6615700457020 in words is "six trillion, six hundred fifteen billion, seven hundred million, four hundred fifty-seven thousand, twenty".