3155975661 has 8 divisors (see below), whose sum is σ = 4261233280. Its totient is φ = 2077350912.

The previous prime is 3155975653. The next prime is 3155975701. The reversal of 3155975661 is 1665795513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3155975661 - 2³ = 3155975653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3155975661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155975621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6657940 + ... + 6658413.

It is an arithmetic number, because the mean of its divisors is an integer number (532654160).

Almost surely, 2^3155975661 is an apocalyptic number.

It is an amenable number.

3155975661 is a deficient number, since it is larger than the sum of its proper divisors (1105257619).

3155975661 is a wasteful number, since it uses less digits than its factorization.

3155975661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13316435.

The product of its digits is 850500, while the sum is 48.

The square root of 3155975661 is about 56178.0709974987. The cubic root of 3155975661 is about 1466.8235762280.

The spelling of 3155975661 in words is "three billion, one hundred fifty-five million, nine hundred seventy-five thousand, six hundred sixty-one".