16651057011522 has 16 divisors (see below), whose sum is σ = 33302348680800. Its totient is φ = 5550313227552.

The previous prime is 16651057011499. The next prime is 16651057011529. The reversal of 16651057011522 is 22511075015661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16651057011529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8848147 + ... + 10563702.

It is an arithmetic number, because the mean of its divisors is an integer number (2081396792550).

Almost surely, 2^{16651057011522} is an apocalyptic number.

16651057011522 is an abundant number, since it is smaller than the sum of its proper divisors (16651291669278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16651057011522 is a wasteful number, since it uses less digits than its factorization.

16651057011522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19554817.

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 16651057011522 in words is "sixteen trillion, six hundred fifty-one billion, fifty-seven million, eleven thousand, five hundred twenty-two".