650616554064 has 40 divisors (see below), whose sum is σ = 1680828621472. Its totient is φ = 216863256960.

The previous prime is 650616554059. The next prime is 650616554113. The reversal of 650616554064 is 460455616056.

It is a super-2 number, since 2×650616554064² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 955479 + ... + 1488009.

Almost surely, 2^650616554064 is an apocalyptic number.

It is an amenable number.

650616554064 is an abundant number, since it is smaller than the sum of its proper divisors (1030212067408).

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

650616554064 is a wasteful number, since it uses less digits than its factorization.

650616554064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557995 (or 557989 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 650616554064 in words is "six hundred fifty billion, six hundred sixteen million, five hundred fifty-four thousand, sixty-four".