3761366665 has 12 divisors (see below), whose sum is σ = 5250561156. Its totient is φ = 2579222688.

The previous prime is 3761366633. The next prime is 3761366677. The reversal of 3761366665 is 5666631673.

It can be written as a sum of positive squares in 2 ways, for example, as 1086097936 + 2675268729 = 32956^2 + 51723^2 .

It is not a de Polignac number, because 3761366665 - 2⁵ = 3761366633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7676014 + ... + 7676503.

It is an arithmetic number, because the mean of its divisors is an integer number (437546763).

Almost surely, 2^3761366665 is an apocalyptic number.

3761366665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3761366665 is a deficient number, since it is larger than the sum of its proper divisors (1489194491).

3761366665 is a wasteful number, since it uses less digits than its factorization.

3761366665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15352536 (or 15352529 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 49.

The square root of 3761366665 is about 61329.9817788983. The cubic root of 3761366665 is about 1555.1843972350.

The spelling of 3761366665 in words is "three billion, seven hundred sixty-one million, three hundred sixty-six thousand, six hundred sixty-five".