20152041261 has 64 divisors (see below), whose sum is σ = 31068057600. Its totient is φ = 11499840000.

The previous prime is 20152041211. The next prime is 20152041331. The reversal of 20152041261 is 16214025102.

It is not a de Polignac number, because 20152041261 - 2¹¹ = 20152039213 is a prime.

It is a super-2 number, since 2×20152041261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152041211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15254481 + ... + 15255801.

It is an arithmetic number, because the mean of its divisors is an integer number (485438400).

Almost surely, 2^20152041261 is an apocalyptic number.

It is an amenable number.

20152041261 is a deficient number, since it is larger than the sum of its proper divisors (10916016339).

20152041261 is a wasteful number, since it uses less digits than its factorization.

20152041261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20152041261 its reverse (16214025102), we get a palindrome (36366066363).

The spelling of 20152041261 in words is "twenty billion, one hundred fifty-two million, forty-one thousand, two hundred sixty-one".