18154454002 has 16 divisors (see below), whose sum is σ = 27362234592. Its totient is φ = 9033768000.

The previous prime is 18154453997. The next prime is 18154454009. The reversal of 18154454002 is 20045445181.

It is a super-2 number, since 2×18154454002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18154454009) 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, 637153 + ... + 665035.

It is an arithmetic number, because the mean of its divisors is an integer number (1710139662).

Almost surely, 2^18154454002 is an apocalyptic number.

18154454002 is a deficient number, since it is larger than the sum of its proper divisors (9207780590).

18154454002 is a wasteful number, since it uses less digits than its factorization.

18154454002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29433.

The product of its (nonzero) digits is 25600, while the sum is 34.

Adding to 18154454002 its reverse (20045445181), we get a palindrome (38199899183).

The spelling of 18154454002 in words is "eighteen billion, one hundred fifty-four million, four hundred fifty-four thousand, two".