3520370166665 has 32 divisors (see below), whose sum is σ = 4702094409600. Its totient is φ = 2508786432000.

The previous prime is 3520370166653. The next prime is 3520370166671. The reversal of 3520370166665 is 5666610730253.

It is not a de Polignac number, because 3520370166665 - 2⁸ = 3520370166409 is a prime.

It is a super-2 number, since 2×3520370166665² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2727815 + ... + 3805484.

It is an arithmetic number, because the mean of its divisors is an integer number (146940450300).

Almost surely, 2^{3520370166665} is an apocalyptic number.

It is an amenable number.

3520370166665 is a deficient number, since it is larger than the sum of its proper divisors (1181724242935).

3520370166665 is a wasteful number, since it uses less digits than its factorization.

3520370166665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533513.

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 3520370166665 in words is "three trillion, five hundred twenty billion, three hundred seventy million, one hundred sixty-six thousand, six hundred sixty-five".