157866262403 has 2 divisors, whose sum is σ = 157866262404. Its totient is φ = 157866262402.

The previous prime is 157866262373. The next prime is 157866262423. The reversal of 157866262403 is 304262668751.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (304262668751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157866262403 - 2¹² = 157866258307 is a prime.

It is not a weakly prime, because it can be changed into another prime (157866262423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78933131201 + 78933131202.

It is an arithmetic number, because the mean of its divisors is an integer number (78933131202).

Almost surely, 2^157866262403 is an apocalyptic number.

157866262403 is a deficient number, since it is larger than the sum of its proper divisors (1).

157866262403 is an equidigital number, since it uses as much as digits as its factorization.

157866262403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 157866262403 in words is "one hundred fifty-seven billion, eight hundred sixty-six million, two hundred sixty-two thousand, four hundred three".