64300166166405 has 32 divisors (see below), whose sum is σ = 112884587819136. Its totient is φ = 31058193464064.

The previous prime is 64300166166329. The next prime is 64300166166409. The reversal of 64300166166405 is 50466166100346.

It is not a de Polignac number, because 64300166166405 - 2²⁰ = 64300165117829 is a prime.

It is a super-2 number, since 2×64300166166405² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64300166166409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3110786287 + ... + 3110806956.

It is an arithmetic number, because the mean of its divisors is an integer number (3527643369348).

Almost surely, 2^{64300166166405} is an apocalyptic number.

64300166166405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64300166166405 is a deficient number, since it is larger than the sum of its proper divisors (48584421652731).

64300166166405 is a wasteful number, since it uses less digits than its factorization.

64300166166405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6221593317.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 64300166166405 in words is "sixty-four trillion, three hundred billion, one hundred sixty-six million, one hundred sixty-six thousand, four hundred five".