16271551612461 has 8 divisors (see below), whose sum is σ = 21695499560224. Its totient is φ = 10847652369840.

The previous prime is 16271551612417. The next prime is 16271551612523. The reversal of 16271551612461 is 16421615517261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16271551612461 - 2⁶ = 16271551612397 is a prime.

It is a super-3 number, since 3×16271551612461³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16271551612461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16271551612861) 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, 11389495 + ... + 12738276.

It is an arithmetic number, because the mean of its divisors is an integer number (2711937445028).

Almost surely, 2^{16271551612461} is an apocalyptic number.

It is an amenable number.

16271551612461 is a deficient number, since it is larger than the sum of its proper divisors (5423947947763).

16271551612461 is a wasteful number, since it uses less digits than its factorization.

16271551612461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24352571.

The product of its digits is 604800, while the sum is 48.

The spelling of 16271551612461 in words is "sixteen trillion, two hundred seventy-one billion, five hundred fifty-one million, six hundred twelve thousand, four hundred sixty-one".