20132952591 has 8 divisors (see below), whose sum is σ = 27048852864. Its totient is φ = 13319510360.

The previous prime is 20132952589. The next prime is 20132952599. The reversal of 20132952591 is 19525923102.

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 20132952591 - 2¹ = 20132952589 is a prime.

It is a super-2 number, since 2×20132952591² (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 (20132952599) 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, 25614051 + ... + 25614836.

It is an arithmetic number, because the mean of its divisors is an integer number (3381106608).

Almost surely, 2^20132952591 is an apocalyptic number.

20132952591 is a deficient number, since it is larger than the sum of its proper divisors (6915900273).

20132952591 is a wasteful number, since it uses less digits than its factorization.

20132952591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51229021.

The product of its (nonzero) digits is 48600, while the sum is 39.

The spelling of 20132952591 in words is "twenty billion, one hundred thirty-two million, nine hundred fifty-two thousand, five hundred ninety-one".