551010254533640 has 128 divisors (see below), whose sum is σ = 1356643134000000. Its totient is φ = 199750631731200.

The previous prime is 551010254533553. The next prime is 551010254533679. The reversal of 551010254533640 is 46335452010155.

It is a happy number.

It is a super-2 number, since 2×551010254533640² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 551010254533591 and 551010254533600.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2803326086 + ... + 2803522634.

It is an arithmetic number, because the mean of its divisors is an integer number (10598774484375).

Almost surely, 2^{551010254533640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551010254533640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678321567000000).

551010254533640 is an abundant number, since it is smaller than the sum of its proper divisors (805632879466360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551010254533640 is a wasteful number, since it uses less digits than its factorization.

551010254533640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216151 (or 216147 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 551010254533640 in words is "five hundred fifty-one trillion, ten billion, two hundred fifty-four million, five hundred thirty-three thousand, six hundred forty".