16622612541 has 24 divisors (see below), whose sum is σ = 24190114104. Its totient is φ = 10998973440.

The previous prime is 16622612537. The next prime is 16622612549. The reversal of 16622612541 is 14521622661.

16622612541 is a `hidden beast` number, since 1 + 6 + 622 + 6 + 1 + 25 + 4 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5588160516 + 11034452025 = 74754^2 + 105045^2 .

It is not a de Polignac number, because 16622612541 - 2² = 16622612537 is a prime.

It is a super-2 number, since 2×16622612541² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16622612496 and 16622612505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16622612549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1374481 + ... + 1386521.

It is an arithmetic number, because the mean of its divisors is an integer number (1007921421).

Almost surely, 2^16622612541 is an apocalyptic number.

It is an amenable number.

16622612541 is a deficient number, since it is larger than the sum of its proper divisors (7567501563).

16622612541 is a wasteful number, since it uses less digits than its factorization.

16622612541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13181 (or 13178 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 16622612541 in words is "sixteen billion, six hundred twenty-two million, six hundred twelve thousand, five hundred forty-one".