651400361506650 has 96 divisors (see below), whose sum is σ = 1848031695544320. Its totient is φ = 148748208246720.

The previous prime is 651400361506607. The next prime is 651400361506757. The reversal of 651400361506650 is 56605163004156.

It is a self number, because there is not a number n which added to its sum of digits gives 651400361506650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 297456354 + ... + 299638253.

It is an arithmetic number, because the mean of its divisors is an integer number (19250330161920).

Almost surely, 2^{651400361506650} is an apocalyptic number.

651400361506650 is an abundant number, since it is smaller than the sum of its proper divisors (1196631334037670).

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

651400361506650 is a wasteful number, since it uses less digits than its factorization.

651400361506650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597095668 (or 597095663 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 651400361506650 in words is "six hundred fifty-one trillion, four hundred billion, three hundred sixty-one million, five hundred six thousand, six hundred fifty".