1254354252666 has 16 divisors (see below), whose sum is σ = 2509102970688. Its totient is φ = 418052340000.

The previous prime is 1254354252661. The next prime is 1254354252667. The reversal of 1254354252666 is 6662524534521.

It is a super-4 number, since 4×1254354252666⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1254354252661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16394710 + ... + 16471041.

It is an arithmetic number, because the mean of its divisors is an integer number (156818935668).

Almost surely, 2^{1254354252666} is an apocalyptic number.

1254354252666 is an abundant number, since it is smaller than the sum of its proper divisors (1254748718022).

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

1254354252666 is a wasteful number, since it uses less digits than its factorization.

1254354252666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32872117.

The product of its digits is 10368000, while the sum is 51.

The spelling of 1254354252666 in words is "one trillion, two hundred fifty-four billion, three hundred fifty-four million, two hundred fifty-two thousand, six hundred sixty-six".