65402268480 has 224 divisors, whose sum is σ = 236353380480. Its totient is φ = 17015132160.

The previous prime is 65402268479. The next prime is 65402268517. The reversal of 65402268480 is 8486220456.

65402268480 is a `hidden beast` number, since 6 + 540 + 2 + 2 + 68 + 48 + 0 = 666.

65402268480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 261927 + ... + 446553.

It is an arithmetic number, because the mean of its divisors is an integer number (1055149020).

Almost surely, 2^65402268480 is an apocalyptic number.

65402268480 is a gapful number since it is divisible by the number (60) 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 65402268480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118176690240).

65402268480 is an abundant number, since it is smaller than the sum of its proper divisors (170951112000).

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

65402268480 is a wasteful number, since it uses less digits than its factorization.

65402268480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184694 (or 184678 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 65402268480 in words is "sixty-five billion, four hundred two million, two hundred sixty-eight thousand, four hundred eighty".