5315157661 has 24 divisors (see below), whose sum is σ = 6192126144. Its totient is φ = 4523642880.

The previous prime is 5315157649. The next prime is 5315157689. The reversal of 5315157661 is 1667515135.

It is a happy number.

It is not a de Polignac number, because 5315157661 - 2²¹ = 5313060509 is a prime.

It is a super-2 number, since 2×5315157661² = 56501801922573981842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5315157611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 609216 + ... + 617878.

It is an arithmetic number, because the mean of its divisors is an integer number (258005256).

Almost surely, 2^5315157661 is an apocalyptic number.

It is an amenable number.

5315157661 is a deficient number, since it is larger than the sum of its proper divisors (876968483).

5315157661 is a wasteful number, since it uses less digits than its factorization.

5315157661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901 (or 8884 counting only the distinct ones).

The product of its digits is 94500, while the sum is 40.

The square root of 5315157661 is about 72905.1278100519. The cubic root of 5315157661 is about 1745.1739315358.

The spelling of 5315157661 in words is "five billion, three hundred fifteen million, one hundred fifty-seven thousand, six hundred sixty-one".