264500401650 has 48 divisors (see below), whose sum is σ = 664264329600. Its totient is φ = 69640608960.

The previous prime is 264500401621. The next prime is 264500401691. The reversal of 264500401650 is 56104005462.

It is a super-2 number, since 2×264500401650² (a number of 24 digits) contains 22 as substring.

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, 11148505 + ... + 11172204.

It is an arithmetic number, because the mean of its divisors is an integer number (13838840200).

Almost surely, 2^264500401650 is an apocalyptic number.

264500401650 is an abundant number, since it is smaller than the sum of its proper divisors (399763927950).

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

264500401650 is a wasteful number, since it uses less digits than its factorization.

264500401650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22320803 (or 22320798 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 264500401650 in words is "two hundred sixty-four billion, five hundred million, four hundred one thousand, six hundred fifty".