623664342677145 has 96 divisors (see below), whose sum is σ = 1268220495056256. Its totient is φ = 258793068441600.

The previous prime is 623664342677137. The next prime is 623664342677161. The reversal of 623664342677145 is 541776243466326.

It is not a de Polignac number, because 623664342677145 - 2³ = 623664342677137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53005624 + ... + 63693993.

It is an arithmetic number, because the mean of its divisors is an integer number (13210630156836).

Almost surely, 2^{623664342677145} is an apocalyptic number.

It is an amenable number.

623664342677145 is an abundant number, since it is smaller than the sum of its proper divisors (644556152379111).

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

623664342677145 is a wasteful number, since it uses less digits than its factorization.

623664342677145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116700311 (or 116700304 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 66.

The spelling of 623664342677145 in words is "six hundred twenty-three trillion, six hundred sixty-four billion, three hundred forty-two million, six hundred seventy-seven thousand, one hundred forty-five".