12520000653646 has 8 divisors (see below), whose sum is σ = 18780417348480. Its totient is φ = 6259861537488.

The previous prime is 12520000653619. The next prime is 12520000653689. The reversal of 12520000653646 is 64635600002521.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12520000653599 and 12520000653608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69281871 + ... + 69462346.

It is an arithmetic number, because the mean of its divisors is an integer number (2347552168560).

Almost surely, 2^{12520000653646} is an apocalyptic number.

12520000653646 is a deficient number, since it is larger than the sum of its proper divisors (6260416694834).

12520000653646 is a wasteful number, since it uses less digits than its factorization.

12520000653646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138789338.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 12520000653646 in words is "twelve trillion, five hundred twenty billion, six hundred fifty-three thousand, six hundred forty-six".