6415621651560 has 128 divisors (see below), whose sum is σ = 20997467688960. Its totient is φ = 1555236460800.

The previous prime is 6415621651513. The next prime is 6415621651573. The reversal of 6415621651560 is 651561265146.

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, 35908609 + ... + 36086831.

It is an arithmetic number, because the mean of its divisors is an integer number (164042716320).

Almost surely, 2^{6415621651560} is an apocalyptic number.

6415621651560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6415621651560 is an abundant number, since it is smaller than the sum of its proper divisors (14581846037400).

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

6415621651560 is a wasteful number, since it uses less digits than its factorization.

6415621651560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205519 (or 205515 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 6415621651560 in words is "six trillion, four hundred fifteen billion, six hundred twenty-one million, six hundred fifty-one thousand, five hundred sixty".