654248366078 has 4 divisors (see below), whose sum is σ = 981372549120. Its totient is φ = 327124183038.

The previous prime is 654248366039. The next prime is 654248366081. The reversal of 654248366078 is 870663842456.

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

It is a super-2 number, since 2×654248366078² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163562091518 + ... + 163562091521.

It is an arithmetic number, because the mean of its divisors is an integer number (245343137280).

Almost surely, 2^654248366078 is an apocalyptic number.

654248366078 is a deficient number, since it is larger than the sum of its proper divisors (327124183042).

654248366078 is a wasteful number, since it uses less digits than its factorization.

654248366078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327124183041.

The product of its (nonzero) digits is 46448640, while the sum is 59.

The spelling of 654248366078 in words is "six hundred fifty-four billion, two hundred forty-eight million, three hundred sixty-six thousand, seventy-eight".