3661552701 has 32 divisors (see below), whose sum is σ = 5751976320. Its totient is φ = 2294099712.

The previous prime is 3661552691. The next prime is 3661552709. The reversal of 3661552701 is 1072551663.

3661552701 is a `hidden beast` number, since 36 + 6 + 1 + 552 + 70 + 1 = 666.

It is not a de Polignac number, because 3661552701 - 2⁵ = 3661552669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661552709) 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, 331006 + ... + 341888.

It is an arithmetic number, because the mean of its divisors is an integer number (179749260).

Almost surely, 2^3661552701 is an apocalyptic number.

It is an amenable number.

3661552701 is a deficient number, since it is larger than the sum of its proper divisors (2090423619).

3661552701 is a wasteful number, since it uses less digits than its factorization.

3661552701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642 (or 11636 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 3661552701 is about 60510.7651662082. The cubic root of 3661552701 is about 1541.3044411006.

The spelling of 3661552701 in words is "three billion, six hundred sixty-one million, five hundred fifty-two thousand, seven hundred one".