21275176153 has 16 divisors (see below), whose sum is σ = 26528431104. Its totient is φ = 16575849360.

The previous prime is 21275176151. The next prime is 21275176163. The reversal of 21275176153 is 35167157212.

It is not a de Polignac number, because 21275176153 - 2¹ = 21275176151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21275176151) 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, 794326 + ... + 820672.

It is an arithmetic number, because the mean of its divisors is an integer number (1658026944).

Almost surely, 2^21275176153 is an apocalyptic number.

It is an amenable number.

21275176153 is a deficient number, since it is larger than the sum of its proper divisors (5253254951).

21275176153 is a wasteful number, since it uses less digits than its factorization.

21275176153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36852.

The product of its digits is 88200, while the sum is 40.

The spelling of 21275176153 in words is "twenty-one billion, two hundred seventy-five million, one hundred seventy-six thousand, one hundred fifty-three".