157630901629 has 2 divisors, whose sum is σ = 157630901630. Its totient is φ = 157630901628.

The previous prime is 157630901621. The next prime is 157630901633. The reversal of 157630901629 is 926109036751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135309944025 + 22320957604 = 367845^2 + 149402^2 .

It is an emirp because it is prime and its reverse (926109036751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157630901629 - 2³ = 157630901621 is a prime.

It is a super-2 number, since 2×157630901629² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157630901621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78815450814 + 78815450815.

It is an arithmetic number, because the mean of its divisors is an integer number (78815450815).

Almost surely, 2^157630901629 is an apocalyptic number.

It is an amenable number.

157630901629 is a deficient number, since it is larger than the sum of its proper divisors (1).

157630901629 is an equidigital number, since it uses as much as digits as its factorization.

157630901629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 157630901629 in words is "one hundred fifty-seven billion, six hundred thirty million, nine hundred one thousand, six hundred twenty-nine".