16133821494 has 32 divisors (see below), whose sum is σ = 36882562560. Its totient is φ = 4609006272.

The previous prime is 16133821447. The next prime is 16133821541. The reversal of 16133821494 is 49412833161.

It is an interprime number because it is at equal distance from previous prime (16133821447) and next prime (16133821541).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323802 + ... + 370290.

It is an arithmetic number, because the mean of its divisors is an integer number (1152580080).

Almost surely, 2^16133821494 is an apocalyptic number.

16133821494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16133821494 is an abundant number, since it is smaller than the sum of its proper divisors (20748741066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16133821494 is a wasteful number, since it uses less digits than its factorization.

16133821494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54764.

The product of its digits is 124416, while the sum is 42.

The spelling of 16133821494 in words is "sixteen billion, one hundred thirty-three million, eight hundred twenty-one thousand, four hundred ninety-four".