20002591002 has 8 divisors (see below), whose sum is σ = 40005182016. Its totient is φ = 6667530332.

The previous prime is 20002590997. The next prime is 20002591003. The reversal of 20002591002 is 20019520002.

It is a sphenic number, since it is the product of 3 distinct primes.

20002591002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20002591002.

It is not an unprimeable number, because it can be changed into a prime (20002591003) 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, 1666882578 + ... + 1666882589.

It is an arithmetic number, because the mean of its divisors is an integer number (5000647752).

Almost surely, 2^20002591002 is an apocalyptic number.

20002591002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20002591002 is a wasteful number, since it uses less digits than its factorization.

20002591002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333765172.

The product of its (nonzero) digits is 360, while the sum is 21.

The spelling of 20002591002 in words is "twenty billion, two million, five hundred ninety-one thousand, two".