3691158660 has 480 divisors, whose sum is σ = 14384418048. Its totient is φ = 773038080.

The previous prime is 3691158629. The next prime is 3691158689. The reversal of 3691158660 is 668511963.

3691158660 is a `hidden beast` number, since 3 + 6 + 9 + 1 + 1 + 586 + 60 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 7903747 + ... + 7904213.

Almost surely, 2^3691158660 is an apocalyptic number.

3691158660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3691158660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7192209024).

3691158660 is an abundant number, since it is smaller than the sum of its proper divisors (10693259388).

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

3691158660 is a wasteful number, since it uses less digits than its factorization.

3691158660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 3691158660 is about 60754.9064685314. The cubic root of 3691158660 is about 1545.4474337997.

The spelling of 3691158660 in words is "three billion, six hundred ninety-one million, one hundred fifty-eight thousand, six hundred sixty".