157143017446 has 4 divisors (see below), whose sum is σ = 235714526172. Its totient is φ = 78571508722.

The previous prime is 157143017399. The next prime is 157143017477. The reversal of 157143017446 is 644710341751.

It is a happy number.

157143017446 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39285754360 + ... + 39285754363.

It is an arithmetic number, because the mean of its divisors is an integer number (58928631543).

Almost surely, 2^157143017446 is an apocalyptic number.

157143017446 is a deficient number, since it is larger than the sum of its proper divisors (78571508726).

157143017446 is an equidigital number, since it uses as much as digits as its factorization.

157143017446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78571508725.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 157143017446 in words is "one hundred fifty-seven billion, one hundred forty-three million, seventeen thousand, four hundred forty-six".