64156166282723 has 8 divisors (see below), whose sum is σ = 65062529579520. Its totient is φ = 63249879522760.

The previous prime is 64156166282647. The next prime is 64156166282783. The reversal of 64156166282723 is 32728266165146.

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

It is not a de Polignac number, because 64156166282723 - 2²⁸ = 64155897847267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64156166282783) 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, 17444843 + ... + 20799876.

It is an arithmetic number, because the mean of its divisors is an integer number (8132816197440).

Almost surely, 2^{64156166282723} is an apocalyptic number.

64156166282723 is a deficient number, since it is larger than the sum of its proper divisors (906363296797).

64156166282723 is a wasteful number, since it uses less digits than its factorization.

64156166282723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38268417.

The product of its digits is 34836480, while the sum is 59.

The spelling of 64156166282723 in words is "sixty-four trillion, one hundred fifty-six billion, one hundred sixty-six million, two hundred eighty-two thousand, seven hundred twenty-three".