157666747336 has 64 divisors (see below), whose sum is σ = 345176657280. Its totient is φ = 66119086080.

The previous prime is 157666747331. The next prime is 157666747351. The reversal of 157666747336 is 633747666751.

157666747336 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (157666747331) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 539715 + ... + 778861.

It is an arithmetic number, because the mean of its divisors is an integer number (5393385270).

Almost surely, 2^157666747336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157666747336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172588328640).

157666747336 is an abundant number, since it is smaller than the sum of its proper divisors (187509909944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157666747336 is a wasteful number, since it uses less digits than its factorization.

157666747336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239414 (or 239410 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 61.

The spelling of 157666747336 in words is "one hundred fifty-seven billion, six hundred sixty-six million, seven hundred forty-seven thousand, three hundred thirty-six".