10201020156 has 36 divisors (see below), whose sum is σ = 26075649600. Its totient is φ = 3362132928.

The previous prime is 10201020149. The next prime is 10201020157. The reversal of 10201020156 is 65102010201.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201020157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1588716 + ... + 1595123.

It is an arithmetic number, because the mean of its divisors is an integer number (724323600).

Almost surely, 2^10201020156 is an apocalyptic number.

It is an amenable number.

10201020156 is an abundant number, since it is smaller than the sum of its proper divisors (15874629444).

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

10201020156 is a wasteful number, since it uses less digits than its factorization.

10201020156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183938 (or 3183933 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10201020156 its reverse (65102010201), we get a palindrome (75303030357).

The spelling of 10201020156 in words is "ten billion, two hundred one million, twenty thousand, one hundred fifty-six".