1554550331097 has 8 divisors (see below), whose sum is σ = 2072896866144. Its totient is φ = 1036285341728.

The previous prime is 1554550331071. The next prime is 1554550331141. The reversal of 1554550331097 is 7901330554551.

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

It is a cyclic number.

It is not a de Polignac number, because 1554550331097 - 2²⁰ = 1554549282521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1554550331597) 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, 20341923 + ... + 20418200.

It is an arithmetic number, because the mean of its divisors is an integer number (259112108268).

Almost surely, 2^{1554550331097} is an apocalyptic number.

It is an amenable number.

1554550331097 is a deficient number, since it is larger than the sum of its proper divisors (518346535047).

1554550331097 is a wasteful number, since it uses less digits than its factorization.

1554550331097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40772839.

The product of its (nonzero) digits is 1417500, while the sum is 48.

The spelling of 1554550331097 in words is "one trillion, five hundred fifty-four billion, five hundred fifty million, three hundred thirty-one thousand, ninety-seven".