20078972606 has 32 divisors (see below), whose sum is σ = 37567936512. Its totient is φ = 7819299360.

The previous prime is 20078972581. The next prime is 20078972611. The reversal of 20078972606 is 60627987002.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310340 + ... + 369416.

It is an arithmetic number, because the mean of its divisors is an integer number (1173998016).

Almost surely, 2^20078972606 is an apocalyptic number.

20078972606 is a deficient number, since it is larger than the sum of its proper divisors (17488963906).

20078972606 is a wasteful number, since it uses less digits than its factorization.

20078972606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61304.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 20078972606 in words is "twenty billion, seventy-eight million, nine hundred seventy-two thousand, six hundred six".