15220783373 has 2 divisors, whose sum is σ = 15220783374. Its totient is φ = 15220783372.

The previous prime is 15220783339. The next prime is 15220783447. The reversal of 15220783373 is 37338702251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9970621609 + 5250161764 = 99853^2 + 72458^2 .

It is a cyclic number.

It is not a de Polignac number, because 15220783373 - 2⁶ = 15220783309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15220783373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15120783373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7610391686 + 7610391687.

It is an arithmetic number, because the mean of its divisors is an integer number (7610391687).

Almost surely, 2^15220783373 is an apocalyptic number.

It is an amenable number.

15220783373 is a deficient number, since it is larger than the sum of its proper divisors (1).

15220783373 is an equidigital number, since it uses as much as digits as its factorization.

15220783373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 15220783373 in words is "fifteen billion, two hundred twenty million, seven hundred eighty-three thousand, three hundred seventy-three".