16660612463 has 4 divisors (see below), whose sum is σ = 18175213608. Its totient is φ = 15146011320.

The previous prime is 16660612453. The next prime is 16660612519. The reversal of 16660612463 is 36421606661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36421606661 = 11 ⋅3311055151.

It is not a de Polignac number, because 16660612463 - 2¹⁶ = 16660546927 is a prime.

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 16660612463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16660612453) 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, 757300556 + ... + 757300577.

It is an arithmetic number, because the mean of its divisors is an integer number (4543803402).

Almost surely, 2^16660612463 is an apocalyptic number.

16660612463 is a deficient number, since it is larger than the sum of its proper divisors (1514601145).

16660612463 is a wasteful number, since it uses less digits than its factorization.

16660612463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514601144.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 16660612463 in words is "sixteen billion, six hundred sixty million, six hundred twelve thousand, four hundred sixty-three".