157648686406 has 8 divisors (see below), whose sum is σ = 240481047240. Its totient is φ = 77488337328.

The previous prime is 157648686389. The next prime is 157648686409. The reversal of 157648686406 is 604686846751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157648686409) 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, 668002791 + ... + 668003026.

It is an arithmetic number, because the mean of its divisors is an integer number (30060130905).

Almost surely, 2^157648686406 is an apocalyptic number.

157648686406 is a deficient number, since it is larger than the sum of its proper divisors (82832360834).

157648686406 is a wasteful number, since it uses less digits than its factorization.

157648686406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336005878.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 157648686406 in words is "one hundred fifty-seven billion, six hundred forty-eight million, six hundred eighty-six thousand, four hundred six".