64497965101 has 8 divisors (see below), whose sum is σ = 64939563000. Its totient is φ = 64056483840.

The previous prime is 64497965047. The next prime is 64497965113. The reversal of 64497965101 is 10156979446.

It can be written as a sum of positive squares in 4 ways, for example, as 1131986025 + 63365979076 = 33645^2 + 251726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64497965101 - 2²¹ = 64495867949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64497965131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280685 + ... + 1330093.

It is an arithmetic number, because the mean of its divisors is an integer number (8117445375).

Almost surely, 2^64497965101 is an apocalyptic number.

It is an amenable number.

64497965101 is a deficient number, since it is larger than the sum of its proper divisors (441597899).

64497965101 is a wasteful number, since it uses less digits than its factorization.

64497965101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58319.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 64497965101 in words is "sixty-four billion, four hundred ninety-seven million, nine hundred sixty-five thousand, one hundred one".