1140254555220 has 144 divisors (see below), whose sum is σ = 3794286525120. Its totient is φ = 274880985600.

The previous prime is 1140254555201. The next prime is 1140254555221. The reversal of 1140254555220 is 225554520411.

1140254555220 is a `hidden beast` number, since 1 + 1 + 40 + 2 + 5 + 45 + 552 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140254555221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1254201 + ... + 1963040.

It is an arithmetic number, because the mean of its divisors is an integer number (26349211980).

Almost surely, 2^{1140254555220} is an apocalyptic number.

1140254555220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140254555220 is an abundant number, since it is smaller than the sum of its proper divisors (2654031969900).

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

1140254555220 is a wasteful number, since it uses less digits than its factorization.

1140254555220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217446 (or 3217441 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 1140254555220 in words is "one trillion, one hundred forty billion, two hundred fifty-four million, five hundred fifty-five thousand, two hundred twenty".