2157532406099 has 16 divisors (see below), whose sum is σ = 2610834508800. Its totient is φ = 1740504349824.

The previous prime is 2157532406093. The next prime is 2157532406111. The reversal of 2157532406099 is 9906042357512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2157532406099 - 2¹⁶ = 2157532340563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2157532406099.

It is not an unprimeable number, because it can be changed into a prime (2157532406093) 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, 14355062 + ... + 14504580.

It is an arithmetic number, because the mean of its divisors is an integer number (163177156800).

Almost surely, 2^{2157532406099} is an apocalyptic number.

2157532406099 is a deficient number, since it is larger than the sum of its proper divisors (453302102701).

2157532406099 is a wasteful number, since it uses less digits than its factorization.

2157532406099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270802.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 2157532406099 in words is "two trillion, one hundred fifty-seven billion, five hundred thirty-two million, four hundred six thousand, ninety-nine".