651515505150 has 48 divisors (see below), whose sum is σ = 1625433715584. Its totient is φ = 172697117280.

The previous prime is 651515505131. The next prime is 651515505197. The reversal of 651515505150 is 51505515156.

It is a junction number, because it is equal to n+sod(n) for n = 651515505099 and 651515505108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12979252 + ... + 13029351.

It is an arithmetic number, because the mean of its divisors is an integer number (33863202408).

Almost surely, 2^651515505150 is an apocalyptic number.

651515505150 is an abundant number, since it is smaller than the sum of its proper divisors (973918210434).

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

651515505150 is a wasteful number, since it uses less digits than its factorization.

651515505150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26008785 (or 26008780 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 651515505150 in words is "six hundred fifty-one billion, five hundred fifteen million, five hundred five thousand, one hundred fifty".