1141572666 has 64 divisors (see below), whose sum is σ = 2537087616. Its totient is φ = 340243200.

The previous prime is 1141572637. The next prime is 1141572697. The reversal of 1141572666 is 6662751411.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316996 + ... + 320576.

It is an arithmetic number, because the mean of its divisors is an integer number (39641994).

Almost surely, 2^1141572666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1141572666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268543808).

1141572666 is an abundant number, since it is smaller than the sum of its proper divisors (1395514950).

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

1141572666 is a wasteful number, since it uses less digits than its factorization.

1141572666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727.

The product of its digits is 60480, while the sum is 39.

The square root of 1141572666 is about 33787.1671792709. The cubic root of 1141572666 is about 1045.1240791901.

The spelling of 1141572666 in words is "one billion, one hundred forty-one million, five hundred seventy-two thousand, six hundred sixty-six".