2151544602464 has 12 divisors (see below), whose sum is σ = 4235853436164. Its totient is φ = 1075772301216.

The previous prime is 2151544602421. The next prime is 2151544602499. The reversal of 2151544602464 is 4642064451512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33617884382 + ... + 33617884445.

It is an arithmetic number, because the mean of its divisors is an integer number (352987786347).

Almost surely, 2^{2151544602464} is an apocalyptic number.

It is an amenable number.

2151544602464 is a deficient number, since it is larger than the sum of its proper divisors (2084308833700).

2151544602464 is an equidigital number, since it uses as much as digits as its factorization.

2151544602464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67235768837 (or 67235768829 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 2151544602464 in words is "two trillion, one hundred fifty-one billion, five hundred forty-four million, six hundred two thousand, four hundred sixty-four".