651510453660 has 48 divisors (see below), whose sum is σ = 1990068296832. Its totient is φ = 157941928000.

The previous prime is 651510453647. The next prime is 651510453673. The reversal of 651510453660 is 66354015156.

It is an interprime number because it is at equal distance from previous prime (651510453647) and next prime (651510453673).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493567866 + ... + 493569185.

It is an arithmetic number, because the mean of its divisors is an integer number (41459756184).

Almost surely, 2^651510453660 is an apocalyptic number.

651510453660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651510453660 is an abundant number, since it is smaller than the sum of its proper divisors (1338557843172).

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

651510453660 is a wasteful number, since it uses less digits than its factorization.

651510453660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987137074 (or 987137072 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 651510453660 in words is "six hundred fifty-one billion, five hundred ten million, four hundred fifty-three thousand, six hundred sixty".