18196493522 has 8 divisors (see below), whose sum is σ = 28175215872. Its totient is φ = 8804754900.

The previous prime is 18196493521. The next prime is 18196493533. The reversal of 18196493522 is 22539469181.

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

It is a super-2 number, since 2×18196493522² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18196493521) 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, 146745854 + ... + 146745977.

It is an arithmetic number, because the mean of its divisors is an integer number (3521901984).

Almost surely, 2^18196493522 is an apocalyptic number.

18196493522 is a deficient number, since it is larger than the sum of its proper divisors (9978722350).

18196493522 is a wasteful number, since it uses less digits than its factorization.

18196493522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293491864.

The product of its digits is 933120, while the sum is 50.

The spelling of 18196493522 in words is "eighteen billion, one hundred ninety-six million, four hundred ninety-three thousand, five hundred twenty-two".