6501166101650 has 48 divisors (see below), whose sum is σ = 13292155327968. Its totient is φ = 2346014112000.

The previous prime is 6501166101641. The next prime is 6501166101691. The reversal of 6501166101650 is 561016611056.

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, 45043607 + ... + 45187706.

It is an arithmetic number, because the mean of its divisors is an integer number (276919902666).

Almost surely, 2^{6501166101650} is an apocalyptic number.

6501166101650 is an abundant number, since it is smaller than the sum of its proper divisors (6790989226318).

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

6501166101650 is a wasteful number, since it uses less digits than its factorization.

6501166101650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90231467 (or 90231462 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 6501166101650 in words is "six trillion, five hundred one billion, one hundred sixty-six million, one hundred one thousand, six hundred fifty".