2159967699612 has 18 divisors (see below), whose sum is σ = 5459918351888. Its totient is φ = 719989233192.

The previous prime is 2159967699601. The next prime is 2159967699613. The reversal of 2159967699612 is 2169967699512.

2159967699612 is a `hidden beast` number, since 21 + 599 + 6 + 7 + 6 + 9 + 9 + 6 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159967699613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29999551348 + ... + 29999551419.

Almost surely, 2^{2159967699612} is an apocalyptic number.

It is an amenable number.

2159967699612 is an abundant number, since it is smaller than the sum of its proper divisors (3299950652276).

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

2159967699612 is a wasteful number, since it uses less digits than its factorization.

2159967699612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59999102777 (or 59999102772 counting only the distinct ones).

The product of its digits is 198404640, while the sum is 72.

The spelling of 2159967699612 in words is "two trillion, one hundred fifty-nine billion, nine hundred sixty-seven million, six hundred ninety-nine thousand, six hundred twelve".