3620076661 has 4 divisors (see below), whose sum is σ = 3630160800. Its totient is φ = 3609992524.

The previous prime is 3620076613. The next prime is 3620076703. The reversal of 3620076661 is 1666700263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3620076661 - 2¹¹ = 3620074613 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 3620076661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620077661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5041531 + ... + 5042248.

It is an arithmetic number, because the mean of its divisors is an integer number (907540200).

Almost surely, 2^3620076661 is an apocalyptic number.

It is an amenable number.

3620076661 is a deficient number, since it is larger than the sum of its proper divisors (10084139).

3620076661 is a wasteful number, since it uses less digits than its factorization.

3620076661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084138.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 3620076661 is about 60167.0728970589. The cubic root of 3620076661 is about 1535.4626468521.

The spelling of 3620076661 in words is "three billion, six hundred twenty million, seventy-six thousand, six hundred sixty-one".