16115200114621 has 4 divisors (see below), whose sum is σ = 16116928666272. Its totient is φ = 16113471562972.

The previous prime is 16115200114619. The next prime is 16115200114631. The reversal of 16115200114621 is 12641100251161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16115200114621 - 2¹ = 16115200114619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16115200114631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864261841 + ... + 864280486.

It is an arithmetic number, because the mean of its divisors is an integer number (4029232166568).

Almost surely, 2^{16115200114621} is an apocalyptic number.

It is an amenable number.

16115200114621 is a deficient number, since it is larger than the sum of its proper divisors (1728551651).

16115200114621 is an equidigital number, since it uses as much as digits as its factorization.

16115200114621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728551650.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 16115200114621 its reverse (12641100251161), we get a palindrome (28756300365782).

The spelling of 16115200114621 in words is "sixteen trillion, one hundred fifteen billion, two hundred million, one hundred fourteen thousand, six hundred twenty-one".