20160215400523 has 8 divisors (see below), whose sum is σ = 22008571187760. Its totient is φ = 18314461102080.

The previous prime is 20160215400517. The next prime is 20160215400527. The reversal of 20160215400523 is 32500451206102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20160215400523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20160215400527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650355990 + ... + 650386987.

It is an arithmetic number, because the mean of its divisors is an integer number (2751071398470).

Almost surely, 2^{20160215400523} is an apocalyptic number.

20160215400523 is a deficient number, since it is larger than the sum of its proper divisors (1848355787237).

20160215400523 is a wasteful number, since it uses less digits than its factorization.

20160215400523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300744397.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 20160215400523 its reverse (32500451206102), we get a palindrome (52660666606625).

The spelling of 20160215400523 in words is "twenty trillion, one hundred sixty billion, two hundred fifteen million, four hundred thousand, five hundred twenty-three".