20187020002 has 16 divisors (see below), whose sum is σ = 31792224960. Its totient is φ = 9600001488.

The previous prime is 20187019999. The next prime is 20187020011. The reversal of 20187020002 is 20002078102.

It is a super-2 number, since 2×20187020002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2593518 + ... + 2601289.

It is an arithmetic number, because the mean of its divisors is an integer number (1987014060).

Almost surely, 2^20187020002 is an apocalyptic number.

20187020002 is a deficient number, since it is larger than the sum of its proper divisors (11605204958).

20187020002 is a wasteful number, since it uses less digits than its factorization.

20187020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194905.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 20187020002 its reverse (20002078102), we get a palindrome (40189098104).

The spelling of 20187020002 in words is "twenty billion, one hundred eighty-seven million, twenty thousand, two".