651055136 has 24 divisors (see below), whose sum is σ = 1289938860. Its totient is φ = 323451648.

The previous prime is 651055117. The next prime is 651055151. The reversal of 651055136 is 631550156.

It can be written as a sum of positive squares in 2 ways, for example, as 612067600 + 38987536 = 24740^2 + 6244^2 .

It is a super-2 number, since 2×651055136² = 847745580223956992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59771 + ... + 69818.

Almost surely, 2^651055136 is an apocalyptic number.

It is an amenable number.

651055136 is a deficient number, since it is larger than the sum of its proper divisors (638883724).

651055136 is a wasteful number, since it uses less digits than its factorization.

651055136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129756 (or 129748 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 651055136 is about 25515.7820965770. The cubic root of 651055136 is about 866.7075699301.

The spelling of 651055136 in words is "six hundred fifty-one million, fifty-five thousand, one hundred thirty-six".