16362666621 has 96 divisors (see below), whose sum is σ = 28497650688. Its totient is φ = 8851783680.

The previous prime is 16362666599. The next prime is 16362666629. The reversal of 16362666621 is 12666626361.

It is not a de Polignac number, because 16362666621 - 2⁶ = 16362666557 is a prime.

It is a super-3 number, since 3×16362666621³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16362666629) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25526461 + ... + 25527101.

It is an arithmetic number, because the mean of its divisors is an integer number (296850528).

Almost surely, 2^16362666621 is an apocalyptic number.

It is an amenable number.

16362666621 is a deficient number, since it is larger than the sum of its proper divisors (12134984067).

16362666621 is a wasteful number, since it uses less digits than its factorization.

16362666621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 968 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The spelling of 16362666621 in words is "sixteen billion, three hundred sixty-two million, six hundred sixty-six thousand, six hundred twenty-one".