12920001366 has 32 divisors (see below), whose sum is σ = 26305044480. Its totient is φ = 4229310816.

The previous prime is 12920001331. The next prime is 12920001401. The reversal of 12920001366 is 66310002921.

It is an interprime number because it is at equal distance from previous prime (12920001331) and next prime (12920001401).

It is a super-4 number, since 4×12920001366⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

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, 334635 + ... + 371241.

It is an arithmetic number, because the mean of its divisors is an integer number (822032640).

Almost surely, 2^12920001366 is an apocalyptic number.

12920001366 is an abundant number, since it is smaller than the sum of its proper divisors (13385043114).

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

12920001366 is a wasteful number, since it uses less digits than its factorization.

12920001366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37668.

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 12920001366 in words is "twelve billion, nine hundred twenty million, one thousand, three hundred sixty-six".