12525151646621 has 8 divisors (see below), whose sum is σ = 12948808224000. Its totient is φ = 12102721283520.

The previous prime is 12525151646611. The next prime is 12525151646671. The reversal of 12525151646621 is 12664615152521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12525151646621 - 2²² = 12525147452317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525151646611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306532796 + ... + 306573653.

It is an arithmetic number, because the mean of its divisors is an integer number (1618601028000).

Almost surely, 2^{12525151646621} is an apocalyptic number.

It is an amenable number.

12525151646621 is a deficient number, since it is larger than the sum of its proper divisors (423656577379).

12525151646621 is an equidigital number, since it uses as much as digits as its factorization.

12525151646621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613107139.

The product of its digits is 864000, while the sum is 47.

The spelling of 12525151646621 in words is "twelve trillion, five hundred twenty-five billion, one hundred fifty-one million, six hundred forty-six thousand, six hundred twenty-one".