20153972106 has 48 divisors (see below), whose sum is σ = 46007956800. Its totient is φ = 6358492224.

The previous prime is 20153972101. The next prime is 20153972131. The reversal of 20153972106 is 60127935102.

It is not an unprimeable number, because it can be changed into a prime (20153972101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348315 + ... + 402033.

It is an arithmetic number, because the mean of its divisors is an integer number (958499100).

Almost surely, 2^20153972106 is an apocalyptic number.

20153972106 is an abundant number, since it is smaller than the sum of its proper divisors (25853984694).

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

20153972106 is a wasteful number, since it uses less digits than its factorization.

20153972106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54843 (or 54840 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 20153972106 in words is "twenty billion, one hundred fifty-three million, nine hundred seventy-two thousand, one hundred six".