3740617661 has 16 divisors (see below), whose sum is σ = 4391558208. Its totient is φ = 3148051200.

The previous prime is 3740617633. The next prime is 3740617667. The reversal of 3740617661 is 1667160473.

It is a cyclic number.

It is not a de Polignac number, because 3740617661 - 2⁶ = 3740617597 is a prime.

It is a super-2 number, since 2×3740617661² = 27984440971570221842, 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 (3740617667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152555 + ... + 175368.

It is an arithmetic number, because the mean of its divisors is an integer number (274472388).

Almost surely, 2^3740617661 is an apocalyptic number.

It is an amenable number.

3740617661 is a deficient number, since it is larger than the sum of its proper divisors (650940547).

3740617661 is a wasteful number, since it uses less digits than its factorization.

3740617661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328012.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 3740617661 is about 61160.5891158677. The cubic root of 3740617661 is about 1552.3194771614.

The spelling of 3740617661 in words is "three billion, seven hundred forty million, six hundred seventeen thousand, six hundred sixty-one".