650115661628 has 6 divisors (see below), whose sum is σ = 1137702407856. Its totient is φ = 325057830812.

The previous prime is 650115661619. The next prime is 650115661639. The reversal of 650115661628 is 826166511056.

It is a super-2 number, since 2×650115661628² (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, 81264457700 + ... + 81264457707.

It is an arithmetic number, because the mean of its divisors is an integer number (189617067976).

Almost surely, 2^650115661628 is an apocalyptic number.

It is an amenable number.

650115661628 is a deficient number, since it is larger than the sum of its proper divisors (487586746228).

650115661628 is a wasteful number, since it uses less digits than its factorization.

650115661628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162528915411 (or 162528915409 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 650115661628 in words is "six hundred fifty billion, one hundred fifteen million, six hundred sixty-one thousand, six hundred twenty-eight".