16620552030 has 16 divisors (see below), whose sum is σ = 39889324944. Its totient is φ = 4432147200.

The previous prime is 16620552029. The next prime is 16620552037. The reversal of 16620552030 is 3025502661.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 554018401 = 16620552030 / (1 + 6 + 6 + 2 + 0 + 5 + 5 + 2 + 0 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620552037) 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, 277009171 + ... + 277009230.

It is an arithmetic number, because the mean of its divisors is an integer number (2493082809).

Almost surely, 2^16620552030 is an apocalyptic number.

16620552030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16620552030 is an abundant number, since it is smaller than the sum of its proper divisors (23268772914).

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

16620552030 is a wasteful number, since it uses less digits than its factorization.

16620552030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554018411.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 16620552030 in words is "sixteen billion, six hundred twenty million, five hundred fifty-two thousand, thirty".