16620103345542 has 8 divisors (see below), whose sum is σ = 33240206691096. Its totient is φ = 5540034448512.

The previous prime is 16620103345399. The next prime is 16620103345567. The reversal of 16620103345542 is 24554330102661.

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

16620103345542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 16620103345494 and 16620103345503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385008612123 + ... + 1385008612134.

It is an arithmetic number, because the mean of its divisors is an integer number (4155025836387).

Almost surely, 2^{16620103345542} is an apocalyptic number.

16620103345542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16620103345542 is a wasteful number, since it uses less digits than its factorization.

16620103345542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770017224262.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 16620103345542 in words is "sixteen trillion, six hundred twenty billion, one hundred three million, three hundred forty-five thousand, five hundred forty-two".