20151320153 has 8 divisors (see below), whose sum is σ = 20278795488. Its totient is φ = 20023892064.

The previous prime is 20151320131. The next prime is 20151320183. The reversal of 20151320153 is 35102315102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20151320153 - 2¹⁴ = 20151303769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20151320183) 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, 1295126 + ... + 1310592.

It is an arithmetic number, because the mean of its divisors is an integer number (2534849436).

Almost surely, 2^20151320153 is an apocalyptic number.

It is an amenable number.

20151320153 is a deficient number, since it is larger than the sum of its proper divisors (127475335).

20151320153 is a wasteful number, since it uses less digits than its factorization.

20151320153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23623.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 20151320153 its reverse (35102315102), we get a palindrome (55253635255).

The spelling of 20151320153 in words is "twenty billion, one hundred fifty-one million, three hundred twenty thousand, one hundred fifty-three".