1051554154440 has 64 divisors (see below), whose sum is σ = 3184145328960. Its totient is φ = 277793742080.

The previous prime is 1051554154439. The next prime is 1051554154477. The reversal of 1051554154440 is 444514551501.

It is a happy number.

It is a super-2 number, since 2×1051554154440² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40935531 + ... + 40961210.

It is an arithmetic number, because the mean of its divisors is an integer number (49752270765).

Almost surely, 2^{1051554154440} is an apocalyptic number.

1051554154440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051554154440 is an abundant number, since it is smaller than the sum of its proper divisors (2132591174520).

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

1051554154440 is a wasteful number, since it uses less digits than its factorization.

1051554154440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81896862 (or 81896858 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 39.

The spelling of 1051554154440 in words is "one trillion, fifty-one billion, five hundred fifty-four million, one hundred fifty-four thousand, four hundred forty".