157630402745 has 8 divisors (see below), whose sum is σ = 189170521416. Its totient is φ = 126094963456.

The previous prime is 157630402711. The next prime is 157630402763. The reversal of 157630402745 is 547204036751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42044682304 + 115585720441 = 205048^2 + 339979^2 .

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 157630402745 - 2¹⁸ = 157630140601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157630402696 and 157630402705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095302 + ... + 1230831.

It is an arithmetic number, because the mean of its divisors is an integer number (23646315177).

Almost surely, 2^157630402745 is an apocalyptic number.

It is an amenable number.

157630402745 is a deficient number, since it is larger than the sum of its proper divisors (31540118671).

157630402745 is a wasteful number, since it uses less digits than its factorization.

157630402745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339691.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 157630402745 in words is "one hundred fifty-seven billion, six hundred thirty million, four hundred two thousand, seven hundred forty-five".