65445654456 has 128 divisors (see below), whose sum is σ = 223745894400. Its totient is φ = 17260387200.

The previous prime is 65445654437. The next prime is 65445654499.

65445654456 is a `hidden beast` number, since 6 + 5 + 4 + 45 + 6 + 544 + 56 = 666.

65445654456 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1645120 + ... + 1684431.

It is an arithmetic number, because the mean of its divisors is an integer number (1748014800).

Almost surely, 2^65445654456 is an apocalyptic number.

It is an amenable number.

65445654456 is an abundant number, since it is smaller than the sum of its proper divisors (158300239944).

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

65445654456 is a wasteful number, since it uses less digits than its factorization.

65445654456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329586 (or 3329576 counting only the distinct ones).

The product of its digits is 34560000, while the sum is 54.

The spelling of 65445654456 in words is "sixty-five billion, four hundred forty-five million, six hundred fifty-four thousand, four hundred fifty-six".