157321630073 has 8 divisors (see below), whose sum is σ = 157708010880. Its totient is φ = 156935349040.

The previous prime is 157321630051. The next prime is 157321630199. The reversal of 157321630073 is 370036123751.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 157321630073 - 2⁶ = 157321630009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157321630273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3871286 + ... + 3911712.

It is an arithmetic number, because the mean of its divisors is an integer number (19713501360).

Almost surely, 2^157321630073 is an apocalyptic number.

It is an amenable number.

157321630073 is a deficient number, since it is larger than the sum of its proper divisors (386380807).

157321630073 is an equidigital number, since it uses as much as digits as its factorization.

157321630073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49887.

The product of its (nonzero) digits is 79380, while the sum is 38.

The spelling of 157321630073 in words is "one hundred fifty-seven billion, three hundred twenty-one million, six hundred thirty thousand, seventy-three".