1141990644240 has 120 divisors (see below), whose sum is σ = 3835564686720. Its totient is φ = 304500709632.

The previous prime is 1141990644173. The next prime is 1141990644247. The reversal of 1141990644240 is 424460991411.

1141990644240 is a `hidden beast` number, since 1 + 14 + 199 + 0 + 6 + 442 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1141990644247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7745449 + ... + 7891511.

It is an arithmetic number, because the mean of its divisors is an integer number (31963039056).

Almost surely, 2^{1141990644240} is an apocalyptic number.

1141990644240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141990644240 is an abundant number, since it is smaller than the sum of its proper divisors (2693574042480).

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

1141990644240 is a wasteful number, since it uses less digits than its factorization.

1141990644240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156941 (or 156932 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 1141990644240 in words is "one trillion, one hundred forty-one billion, nine hundred ninety million, six hundred forty-four thousand, two hundred forty".