15620166464 has 28 divisors (see below), whose sum is σ = 35424307104. Its totient is φ = 6694356864.

The previous prime is 15620166451. The next prime is 15620166473. The reversal of 15620166464 is 46466102651.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17432774 + ... + 17433669.

Almost surely, 2^15620166464 is an apocalyptic number.

15620166464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15620166464 is an abundant number, since it is smaller than the sum of its proper divisors (19804140640).

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

15620166464 is an equidigital number, since it uses as much as digits as its factorization.

15620166464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34866462 (or 34866452 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 15620166464 in words is "fifteen billion, six hundred twenty million, one hundred sixty-six thousand, four hundred sixty-four".