1615677021616 has 80 divisors (see below), whose sum is σ = 3585090235968. Its totient is φ = 690978816000.

The previous prime is 1615677021593. The next prime is 1615677021683. The reversal of 1615677021616 is 6161207765161.

It is a super-2 number, since 2×1615677021616² (a number of 25 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 1615677021616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163178266 + ... + 163188166.

Almost surely, 2^{1615677021616} is an apocalyptic number.

1615677021616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1615677021616 is an abundant number, since it is smaller than the sum of its proper divisors (1969413214352).

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

1615677021616 is a wasteful number, since it uses less digits than its factorization.

1615677021616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830 (or 12824 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 1615677021616 in words is "one trillion, six hundred fifteen billion, six hundred seventy-seven million, twenty-one thousand, six hundred sixteen".