16421053000 has 64 divisors (see below), whose sum is σ = 41918497920. Its totient is φ = 5971288000.

The previous prime is 16421052937. The next prime is 16421053001. The reversal of 16421053000 is 35012461.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (16421053001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735412 + ... + 757411.

It is an arithmetic number, because the mean of its divisors is an integer number (654976530).

Almost surely, 2^16421053000 is an apocalyptic number.

16421053000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16421053000 is an abundant number, since it is smaller than the sum of its proper divisors (25497444920).

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

16421053000 is a wasteful number, since it uses less digits than its factorization.

16421053000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492855 (or 1492841 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 16421053000 its reverse (35012461), we get a palindrome (16456065461).

The spelling of 16421053000 in words is "sixteen billion, four hundred twenty-one million, fifty-three thousand".