20161001562 has 32 divisors (see below), whose sum is σ = 43651077120. Its totient is φ = 6170902080.

The previous prime is 20161001561. The next prime is 20161001563. The reversal of 20161001562 is 26510016102.

It is an interprime number because it is at equal distance from previous prime (20161001561) and next prime (20161001563).

It is not an unprimeable number, because it can be changed into a prime (20161001561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661737 + ... + 691532.

It is an arithmetic number, because the mean of its divisors is an integer number (1364096160).

Almost surely, 2^20161001562 is an apocalyptic number.

20161001562 is an abundant number, since it is smaller than the sum of its proper divisors (23490075558).

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

20161001562 is a wasteful number, since it uses less digits than its factorization.

20161001562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353478.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 20161001562 its reverse (26510016102), we get a palindrome (46671017664).

The spelling of 20161001562 in words is "twenty billion, one hundred sixty-one million, one thousand, five hundred sixty-two".