654134163551 has 4 divisors (see below), whose sum is σ = 713600905704. Its totient is φ = 594667421400.

The previous prime is 654134163547. The next prime is 654134163569. The reversal of 654134163551 is 155361431456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654134163551 - 2² = 654134163547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654134183551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29733371060 + ... + 29733371081.

It is an arithmetic number, because the mean of its divisors is an integer number (178400226426).

Almost surely, 2^654134163551 is an apocalyptic number.

654134163551 is a deficient number, since it is larger than the sum of its proper divisors (59466742153).

654134163551 is a wasteful number, since it uses less digits than its factorization.

654134163551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59466742152.

The product of its digits is 648000, while the sum is 44.

The spelling of 654134163551 in words is "six hundred fifty-four billion, one hundred thirty-four million, one hundred sixty-three thousand, five hundred fifty-one".