20077072002 has 96 divisors (see below), whose sum is σ = 49572746496. Its totient is φ = 5825635200.

The previous prime is 20077071953. The next prime is 20077072007. The reversal of 20077072002 is 20027077002.

It is not an unprimeable number, because it can be changed into a prime (20077072007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355852 + ... + 408392.

It is an arithmetic number, because the mean of its divisors is an integer number (516382776).

Almost surely, 2^20077072002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20077072002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24786373248).

20077072002 is an abundant number, since it is smaller than the sum of its proper divisors (29495674494).

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

20077072002 is a wasteful number, since it uses less digits than its factorization.

20077072002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52656 (or 52653 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

Subtracting from 20077072002 its reverse (20027077002), we obtain a triangular number (49995000 = T₉₉₉₉).

The spelling of 20077072002 in words is "twenty billion, seventy-seven million, seventy-two thousand, two".