20010200209979 has 8 divisors (see below), whose sum is σ = 24214023783648. Its totient is φ = 16142682522240.

The previous prime is 20010200209973. The next prime is 20010200209999. The reversal of 20010200209979 is 97990200201002.

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

It is a cyclic number.

It is not a de Polignac number, because 20010200209979 - 2¹² = 20010200205883 is a prime.

It is a super-2 number, since 2×20010200209979² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010200209973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84076471352 + ... + 84076471589.

It is an arithmetic number, because the mean of its divisors is an integer number (3026752972956).

Almost surely, 2^{20010200209979} is an apocalyptic number.

20010200209979 is a deficient number, since it is larger than the sum of its proper divisors (4203823573669).

20010200209979 is a wasteful number, since it uses less digits than its factorization.

20010200209979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168152942965.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 20010200209979 in words is "twenty trillion, ten billion, two hundred million, two hundred nine thousand, nine hundred seventy-nine".