8661254000 has 160 divisors (see below), whose sum is σ = 24445863936. Its totient is φ = 2906169600.

The previous prime is 8661253981. The next prime is 8661254009. The reversal of 8661254000 is 4521668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8661254009) 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, 651419 + ... + 664581.

Almost surely, 2^8661254000 is an apocalyptic number.

8661254000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8661254000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12222931968).

8661254000 is an abundant number, since it is smaller than the sum of its proper divisors (15784609936).

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

8661254000 is a wasteful number, since it uses less digits than its factorization.

8661254000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13240 (or 13224 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 8661254000 is about 93065.8584014568. The cubic root of 8661254000 is about 2053.6523428663.

Adding to 8661254000 its reverse (4521668), we get a palindrome (8665775668).

The spelling of 8661254000 in words is "eight billion, six hundred sixty-one million, two hundred fifty-four thousand".