551121104412145 has 8 divisors (see below), whose sum is σ = 661347211634280. Its totient is φ = 440895625969920.

The previous prime is 551121104412121. The next prime is 551121104412169. The reversal of 551121104412145 is 541214401121155.

It is an interprime number because it is at equal distance from previous prime (551121104412121) and next prime (551121104412169).

It can be written as a sum of positive squares in 4 ways, for example, as 31304998537569 + 519816105874576 = 5595087^2 + 22799476^2 .

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

It is not a de Polignac number, because 551121104412145 - 2³¹ = 551118956928497 is a prime.

It is a super-3 number, since 3×551121104412145³ (a number of 45 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155264536 + ... + 158774425.

It is an arithmetic number, because the mean of its divisors is an integer number (82668401454285).

Almost surely, 2^{551121104412145} is an apocalyptic number.

It is an amenable number.

551121104412145 is a deficient number, since it is larger than the sum of its proper divisors (110226107222135).

551121104412145 is a wasteful number, since it uses less digits than its factorization.

551121104412145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314389955.

The product of its (nonzero) digits is 32000, while the sum is 37.

The spelling of 551121104412145 in words is "five hundred fifty-one trillion, one hundred twenty-one billion, one hundred four million, four hundred twelve thousand, one hundred forty-five".