671125502654 has 4 divisors (see below), whose sum is σ = 1006688253984. Its totient is φ = 335562751326.

The previous prime is 671125502527. The next prime is 671125502687. The reversal of 671125502654 is 456205521176.

671125502654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×671125502654² (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, 167781375662 + ... + 167781375665.

It is an arithmetic number, because the mean of its divisors is an integer number (251672063496).

Almost surely, 2^671125502654 is an apocalyptic number.

671125502654 is a deficient number, since it is larger than the sum of its proper divisors (335562751330).

671125502654 is a wasteful number, since it uses less digits than its factorization.

671125502654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335562751329.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 671125502654 in words is "six hundred seventy-one billion, one hundred twenty-five million, five hundred two thousand, six hundred fifty-four".