9266661840 has 80 divisors (see below), whose sum is σ = 29503075968. Its totient is φ = 2404320768.

The previous prime is 9266661743. The next prime is 9266661913. The reversal of 9266661840 is 481666629.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 9266661840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512892 + ... + 530651.

Almost surely, 2^9266661840 is an apocalyptic number.

It is an amenable number.

9266661840 is an abundant number, since it is smaller than the sum of its proper divisors (20236414128).

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

9266661840 is a wasteful number, since it uses less digits than its factorization.

9266661840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043596 (or 1043590 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 9266661840 is about 96263.5021178847. The cubic root of 9266661840 is about 2100.4278674661.

The spelling of 9266661840 in words is "nine billion, two hundred sixty-six million, six hundred sixty-one thousand, eight hundred forty".