651348557564 has 6 divisors (see below), whose sum is σ = 1139859975744. Its totient is φ = 325674278780.

The previous prime is 651348557533. The next prime is 651348557593. The reversal of 651348557564 is 465755843156.

It is a super-2 number, since 2×651348557564² (a number of 24 digits) contains 22 as substring.

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, 81418569692 + ... + 81418569699.

It is an arithmetic number, because the mean of its divisors is an integer number (189976662624).

Almost surely, 2^651348557564 is an apocalyptic number.

It is an amenable number.

651348557564 is a deficient number, since it is larger than the sum of its proper divisors (488511418180).

651348557564 is a wasteful number, since it uses less digits than its factorization.

651348557564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162837139395 (or 162837139393 counting only the distinct ones).

The product of its digits is 60480000, while the sum is 59.

The spelling of 651348557564 in words is "six hundred fifty-one billion, three hundred forty-eight million, five hundred fifty-seven thousand, five hundred sixty-four".