3623542661 has 8 divisors (see below), whose sum is σ = 3667317984. Its totient is φ = 3580011760.

The previous prime is 3623542603. The next prime is 3623542717. The reversal of 3623542661 is 1662453263.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3623542661 - 2¹⁸ = 3623280517 is a prime.

It is a super-2 number, since 2×3623542661² = 26260122832173921842, 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 (3623542261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31190 + ... + 90663.

It is an arithmetic number, because the mean of its divisors is an integer number (458414748).

Almost surely, 2^3623542661 is an apocalyptic number.

It is an amenable number.

3623542661 is a deficient number, since it is larger than the sum of its proper divisors (43775323).

3623542661 is a wasteful number, since it uses less digits than its factorization.

3623542661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122211.

The product of its digits is 155520, while the sum is 38.

The square root of 3623542661 is about 60195.8691356807. The cubic root of 3623542661 is about 1535.9525274510.

The spelling of 3623542661 in words is "three billion, six hundred twenty-three million, five hundred forty-two thousand, six hundred sixty-one".