3620659680 has 144 divisors (see below), whose sum is σ = 13478787504. Its totient is φ = 877731840.

The previous prime is 3620659661. The next prime is 3620659717. The reversal of 3620659680 is 869560263.

It is a happy number.

3620659680 is a `hidden beast` number, since 36 + 20 + 6 + 596 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98449 + ... + 130128.

It is an arithmetic number, because the mean of its divisors is an integer number (93602691).

Almost surely, 2^3620659680 is an apocalyptic number.

3620659680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3620659680 is an abundant number, since it is smaller than the sum of its proper divisors (9858127824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3620659680 is a wasteful number, since it uses less digits than its factorization.

3620659680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228609 (or 228598 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 3620659680 is about 60171.9177025296. The cubic root of 3620659680 is about 1535.5450719798.

The spelling of 3620659680 in words is "three billion, six hundred twenty million, six hundred fifty-nine thousand, six hundred eighty".