654916553487 has 24 divisors (see below), whose sum is σ = 1081156895520. Its totient is φ = 374229443520.

The previous prime is 654916553429. The next prime is 654916553507. The reversal of 654916553487 is 784355619456.

It is a happy number.

654916553487 is a `hidden beast` number, since 6 + 5 + 4 + 9 + 16 + 5 + 534 + 87 = 666.

It is not a de Polignac number, because 654916553487 - 2¹⁵ = 654916520719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654916553087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3524937 + ... + 3706077.

It is an arithmetic number, because the mean of its divisors is an integer number (45048203980).

Almost surely, 2^654916553487 is an apocalyptic number.

654916553487 is a deficient number, since it is larger than the sum of its proper divisors (426240342033).

654916553487 is a wasteful number, since it uses less digits than its factorization.

654916553487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238543 (or 238540 counting only the distinct ones).

The product of its digits is 108864000, while the sum is 63.

The spelling of 654916553487 in words is "six hundred fifty-four billion, nine hundred sixteen million, five hundred fifty-three thousand, four hundred eighty-seven".