40164212064761 has 8 divisors (see below), whose sum is σ = 40216205937600. Its totient is φ = 40112249490352.

The previous prime is 40164212064737. The next prime is 40164212064799. The reversal of 40164212064761 is 16746021246104.

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 40164212064761 - 2²⁶ = 40164144955897 is a prime.

It is a super-2 number, since 2×40164212064761² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40164212064061) 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, 5255870 + ... + 10390023.

It is an arithmetic number, because the mean of its divisors is an integer number (5027025742200).

Almost surely, 2^{40164212064761} is an apocalyptic number.

It is an amenable number.

40164212064761 is a deficient number, since it is larger than the sum of its proper divisors (51993872839).

40164212064761 is a wasteful number, since it uses less digits than its factorization.

40164212064761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649215.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 40164212064761 in words is "forty trillion, one hundred sixty-four billion, two hundred twelve million, sixty-four thousand, seven hundred sixty-one".