16250522505261 has 64 divisors (see below), whose sum is σ = 25136019636480. Its totient is φ = 9243726428160.

The previous prime is 16250522505253. The next prime is 16250522505323.

It is a happy number.

16250522505261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16250522505261 - 2³ = 16250522505253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16250522505461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38634495 + ... + 39052851.

It is an arithmetic number, because the mean of its divisors is an integer number (392750306820).

Almost surely, 2^{16250522505261} is an apocalyptic number.

16250522505261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16250522505261 is a deficient number, since it is larger than the sum of its proper divisors (8885497131219).

16250522505261 is a wasteful number, since it uses less digits than its factorization.

16250522505261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419534.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 16250522505261 in words is "sixteen trillion, two hundred fifty billion, five hundred twenty-two million, five hundred five thousand, two hundred sixty-one".