2540227488666 has 64 divisors (see below), whose sum is σ = 6113421649920. Its totient is φ = 687400810560.

The previous prime is 2540227488661. The next prime is 2540227488703. The reversal of 2540227488666 is 6668847220452.

It is not an unprimeable number, because it can be changed into a prime (2540227488661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2656176 + ... + 3483636.

It is an arithmetic number, because the mean of its divisors is an integer number (95522213280).

Almost surely, 2^{2540227488666} is an apocalyptic number.

2540227488666 is an abundant number, since it is smaller than the sum of its proper divisors (3573194161254).

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

2540227488666 is a wasteful number, since it uses less digits than its factorization.

2540227488666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831339.

The product of its (nonzero) digits is 61931520, while the sum is 60.

The spelling of 2540227488666 in words is "two trillion, five hundred forty billion, two hundred twenty-seven million, four hundred eighty-eight thousand, six hundred sixty-six".