101531645005 has 16 divisors (see below), whose sum is σ = 143735122944. Its totient is φ = 67375837440.

The previous prime is 101531644997. The next prime is 101531645009. The reversal of 101531645005 is 500546135101.

It is a happy number.

It is not a de Polignac number, because 101531645005 - 2³ = 101531644997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101531645009) 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, 46787692 + ... + 46789861.

It is an arithmetic number, because the mean of its divisors is an integer number (8983445184).

Almost surely, 2^101531645005 is an apocalyptic number.

It is an amenable number.

101531645005 is a deficient number, since it is larger than the sum of its proper divisors (42203477939).

101531645005 is an equidigital number, since it uses as much as digits as its factorization.

101531645005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93577596.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 101531645005 in words is "one hundred one billion, five hundred thirty-one million, six hundred forty-five thousand, five".