15545023351097 has 2 divisors, whose sum is σ = 15545023351098. Its totient is φ = 15545023351096.

The previous prime is 15545023350949. The next prime is 15545023351103. The reversal of 15545023351097 is 79015332054551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13113806447401 + 2431216903696 = 3621299^2 + 1559236^2 .

It is a cyclic number.

It is not a de Polignac number, because 15545023351097 - 2¹⁴ = 15545023334713 is a prime.

It is a super-2 number, since 2×15545023351097² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15545026351097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7772511675548 + 7772511675549.

It is an arithmetic number, because the mean of its divisors is an integer number (7772511675549).

Almost surely, 2^{15545023351097} is an apocalyptic number.

It is an amenable number.

15545023351097 is a deficient number, since it is larger than the sum of its proper divisors (1).

15545023351097 is an equidigital number, since it uses as much as digits as its factorization.

15545023351097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 50.

The spelling of 15545023351097 in words is "fifteen trillion, five hundred forty-five billion, twenty-three million, three hundred fifty-one thousand, ninety-seven".