31662132151 has 16 divisors (see below), whose sum is σ = 34308356544. Its totient is φ = 29046334464.

The previous prime is 31662132071. The next prime is 31662132191. The reversal of 31662132151 is 15123126613.

It is a cyclic number.

It is not a de Polignac number, because 31662132151 - 2⁷ = 31662132023 is a prime.

It is a super-2 number, since 2×31662132151² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31662132191) 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, 2511175 + ... + 2523751.

It is an arithmetic number, because the mean of its divisors is an integer number (2144272284).

Almost surely, 2^31662132151 is an apocalyptic number.

31662132151 is a deficient number, since it is larger than the sum of its proper divisors (2646224393).

31662132151 is a wasteful number, since it uses less digits than its factorization.

31662132151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13770.

The product of its digits is 6480, while the sum is 31.

Adding to 31662132151 its reverse (15123126613), we get a palindrome (46785258764).

The spelling of 31662132151 in words is "thirty-one billion, six hundred sixty-two million, one hundred thirty-two thousand, one hundred fifty-one".