16457200275461 has 4 divisors (see below), whose sum is σ = 17953309391424. Its totient is φ = 14961091159500.

The previous prime is 16457200275413. The next prime is 16457200275473.

It is a happy number.

16457200275461 is nontrivially palindromic in base 10.

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 16457200275461 - 2³⁸ = 16182322368517 is a prime.

It is a super-2 number, since 2×16457200275461² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16457200274461) 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, 748054557965 + ... + 748054557986.

It is an arithmetic number, because the mean of its divisors is an integer number (4488327347856).

Almost surely, 2^{16457200275461} is an apocalyptic number.

16457200275461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16457200275461 is a deficient number, since it is larger than the sum of its proper divisors (1496109115963).

16457200275461 is a wasteful number, since it uses less digits than its factorization.

16457200275461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496109115962.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 16457200275461 in words is "sixteen trillion, four hundred fifty-seven billion, two hundred million, two hundred seventy-five thousand, four hundred sixty-one".