7212020661456 has 40 divisors (see below), whose sum is σ = 20064211329120. Its totient is φ = 2219083280256.

The previous prime is 7212020661427. The next prime is 7212020661467. The reversal of 7212020661456 is 6541660202127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5778862086 + ... + 5778863333.

It is an arithmetic number, because the mean of its divisors is an integer number (501605283228).

Almost surely, 2^{7212020661456} is an apocalyptic number.

It is an amenable number.

7212020661456 is an abundant number, since it is smaller than the sum of its proper divisors (12852190667664).

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

7212020661456 is a wasteful number, since it uses less digits than its factorization.

7212020661456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557725443 (or 11557725437 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 7212020661456 in words is "seven trillion, two hundred twelve billion, twenty million, six hundred sixty-one thousand, four hundred fifty-six".