3757660065 has 40 divisors (see below), whose sum is σ = 6968249640. Its totient is φ = 1934972928.

The previous prime is 3757660063. The next prime is 3757660087. The reversal of 3757660065 is 5600667573.

3757660065 is a `hidden beast` number, since 37 + 5 + 7 + 6 + 600 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19927296 + 3737732769 = 4464^2 + 61137^2 .

It is not a de Polignac number, because 3757660065 - 2¹ = 3757660063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3757660065.

It is not an unprimeable number, because it can be changed into a prime (3757660061) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 148224 + ... + 171713.

It is an arithmetic number, because the mean of its divisors is an integer number (174206241).

Almost surely, 2^3757660065 is an apocalyptic number.

It is an amenable number.

3757660065 is a deficient number, since it is larger than the sum of its proper divisors (3210589575).

3757660065 is a wasteful number, since it uses less digits than its factorization.

3757660065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319983 (or 319974 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The square root of 3757660065 is about 61299.7558314876. The cubic root of 3757660065 is about 1554.6733825302.

The spelling of 3757660065 in words is "three billion, seven hundred fifty-seven million, six hundred sixty thousand, sixty-five".