551040420415 has 16 divisors (see below), whose sum is σ = 676369522080. Its totient is φ = 430843720320.

The previous prime is 551040420401. The next prime is 551040420431. The reversal of 551040420415 is 514024040155.

It is a happy number.

It is not a de Polignac number, because 551040420415 - 2⁵ = 551040420383 is a prime.

It is a super-2 number, since 2×551040420415² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5705905 + ... + 5801674.

It is an arithmetic number, because the mean of its divisors is an integer number (42273095130).

Almost surely, 2^551040420415 is an apocalyptic number.

551040420415 is a deficient number, since it is larger than the sum of its proper divisors (125329101665).

551040420415 is a wasteful number, since it uses less digits than its factorization.

551040420415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507802.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 551040420415 in words is "five hundred fifty-one billion, forty million, four hundred twenty thousand, four hundred fifteen".