2116405260425 has 24 divisors (see below), whose sum is σ = 2688796477440. Its totient is φ = 1651897956800.

The previous prime is 2116405260419. The next prime is 2116405260439. The reversal of 2116405260425 is 5240625046112.

It is not a de Polignac number, because 2116405260425 - 2⁸ = 2116405260169 is a prime.

It is a super-2 number, since 2×2116405260425² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4224521 + ... + 4698870.

It is an arithmetic number, because the mean of its divisors is an integer number (112033186560).

Almost surely, 2^{2116405260425} is an apocalyptic number.

2116405260425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2116405260425 is a deficient number, since it is larger than the sum of its proper divisors (572391217015).

2116405260425 is a wasteful number, since it uses less digits than its factorization.

2116405260425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923633 (or 8923628 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 2116405260425 in words is "two trillion, one hundred sixteen billion, four hundred five million, two hundred sixty thousand, four hundred twenty-five".