3172660020 has 288 divisors, whose sum is σ = 10821807360. Its totient is φ = 748154880.

The previous prime is 3172660009. The next prime is 3172660027. The reversal of 3172660020 is 200662713.

It is a happy number.

3172660020 is a `hidden beast` number, since 3 + 17 + 26 + 600 + 20 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172660027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4292811 + ... + 4293549.

It is an arithmetic number, because the mean of its divisors is an integer number (37575720).

Almost surely, 2^3172660020 is an apocalyptic number.

3172660020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3172660020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5410903680).

3172660020 is an abundant number, since it is smaller than the sum of its proper divisors (7649147340).

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

3172660020 is a wasteful number, since it uses less digits than its factorization.

3172660020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3172660020 is about 56326.3705558950. The cubic root of 3172660020 is about 1469.4038676807.

The spelling of 3172660020 in words is "three billion, one hundred seventy-two million, six hundred sixty thousand, twenty".