12158867760 has 80 divisors (see below), whose sum is σ = 40591922784. Its totient is φ = 2992951296.

The previous prime is 12158867759. The next prime is 12158867779. The reversal of 12158867760 is 6776885121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1945417 + ... + 1951656.

Almost surely, 2^12158867760 is an apocalyptic number.

12158867760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12158867760 is an abundant number, since it is smaller than the sum of its proper divisors (28433055024).

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

12158867760 is a wasteful number, since it uses less digits than its factorization.

12158867760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897102 (or 3897096 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 12158867760 in words is "twelve billion, one hundred fifty-eight million, eight hundred sixty-seven thousand, seven hundred sixty".