166001015616 has 56 divisors (see below), whose sum is σ = 439263336864. Its totient is φ = 55327080960.

The previous prime is 166001015611. The next prime is 166001015617. The reversal of 166001015616 is 616510100661.

166001015616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166001015611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1723551 + ... + 1817313.

Almost surely, 2^166001015616 is an apocalyptic number.

166001015616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166001015616 is an abundant number, since it is smaller than the sum of its proper divisors (273262321248).

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

166001015616 is an equidigital number, since it uses as much as digits as its factorization.

166001015616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102999 (or 102989 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 166001015616 in words is "one hundred sixty-six billion, one million, fifteen thousand, six hundred sixteen".