155322464665 has 8 divisors (see below), whose sum is σ = 186389284608. Its totient is φ = 124256420400.

The previous prime is 155322464623. The next prime is 155322464681. The reversal of 155322464665 is 566464223551.

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

It is not a de Polignac number, because 155322464665 - 2²⁵ = 155288910233 is a prime.

It is a super-2 number, since 2×155322464665² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427864 + ... + 702646.

It is an arithmetic number, because the mean of its divisors is an integer number (23298660576).

Almost surely, 2^155322464665 is an apocalyptic number.

It is an amenable number.

155322464665 is a deficient number, since it is larger than the sum of its proper divisors (31066819943).

155322464665 is a wasteful number, since it uses less digits than its factorization.

155322464665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387839.

The product of its digits is 5184000, while the sum is 49.

The spelling of 155322464665 in words is "one hundred fifty-five billion, three hundred twenty-two million, four hundred sixty-four thousand, six hundred sixty-five".