3151550661 has 32 divisors (see below), whose sum is σ = 5137332480. Its totient is φ = 1677459456.

The previous prime is 3151550639. The next prime is 3151550663. The reversal of 3151550661 is 1660551513.

It is not a de Polignac number, because 3151550661 - 2¹⁴ = 3151534277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151550663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10876 + ... + 80133.

It is an arithmetic number, because the mean of its divisors is an integer number (160541640).

Almost surely, 2^3151550661 is an apocalyptic number.

It is an amenable number.

3151550661 is a deficient number, since it is larger than the sum of its proper divisors (1985781819).

3151550661 is a wasteful number, since it uses less digits than its factorization.

3151550661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91133.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 3151550661 is about 56138.6734880688. The cubic root of 3151550661 is about 1466.1377101202.

The spelling of 3151550661 in words is "three billion, one hundred fifty-one million, five hundred fifty thousand, six hundred sixty-one".