3553320672 has 72 divisors (see below), whose sum is σ = 11023379640. Its totient is φ = 1076762880.

The previous prime is 3553320653. The next prime is 3553320689. The reversal of 3553320672 is 2760233553.

3553320672 is a `hidden beast` number, since 3 + 553 + 32 + 0 + 6 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 557647 + ... + 563982.

It is an arithmetic number, because the mean of its divisors is an integer number (153102495).

Almost surely, 2^3553320672 is an apocalyptic number.

3553320672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3553320672 is an abundant number, since it is smaller than the sum of its proper divisors (7470058968).

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

3553320672 is a wasteful number, since it uses less digits than its factorization.

3553320672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121656 (or 1121645 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 36.

The square root of 3553320672 is about 59609.7363859294. The cubic root of 3553320672 is about 1525.9658018327.

The spelling of 3553320672 in words is "three billion, five hundred fifty-three million, three hundred twenty thousand, six hundred seventy-two".