99851537522 has 32 divisors (see below), whose sum is σ = 166542588864. Its totient is φ = 44512977600.

The previous prime is 99851537491. The next prime is 99851537537. The reversal of 99851537522 is 22573515899.

It is a happy number.

It is a pancake number, because a pancake can be divided into 99851537522 parts by 446881 straight cuts.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3168668 + ... + 3200024.

It is an arithmetic number, because the mean of its divisors is an integer number (5204455902).

Almost surely, 2^99851537522 is an apocalyptic number.

99851537522 is a deficient number, since it is larger than the sum of its proper divisors (66691051342).

99851537522 is a wasteful number, since it uses less digits than its factorization.

99851537522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34154.

The product of its digits is 6804000, while the sum is 56.

The spelling of 99851537522 in words is "ninety-nine billion, eight hundred fifty-one million, five hundred thirty-seven thousand, five hundred twenty-two".