29955206111631 has 16 divisors (see below), whose sum is σ = 44515476576000. Its totient is φ = 17806190629248.

The previous prime is 29955206111627. The next prime is 29955206111657. The reversal of 29955206111631 is 13611160255992.

It is not a de Polignac number, because 29955206111631 - 2² = 29955206111627 is a prime.

It is a super-2 number, since 2×29955206111631² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29955206111671) 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, 15456761731 + ... + 15456763668.

It is an arithmetic number, because the mean of its divisors is an integer number (2782217286000).

Almost surely, 2^{29955206111631} is an apocalyptic number.

29955206111631 is a deficient number, since it is larger than the sum of its proper divisors (14560270464369).

29955206111631 is a wasteful number, since it uses less digits than its factorization.

29955206111631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30913525438.

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 29955206111631 in words is "twenty-nine trillion, nine hundred fifty-five billion, two hundred six million, one hundred eleven thousand, six hundred thirty-one".