155630362229 has 4 divisors (see below), whose sum is σ = 155852374860. Its totient is φ = 155408349600.

The previous prime is 155630362171. The next prime is 155630362231. The reversal of 155630362229 is 922263036551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146700490225 + 8929872004 = 383015^2 + 94498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155630362229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155630362229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155630362289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111005264 + ... + 111006665.

It is an arithmetic number, because the mean of its divisors is an integer number (38963093715).

Almost surely, 2^155630362229 is an apocalyptic number.

It is an amenable number.

155630362229 is a deficient number, since it is larger than the sum of its proper divisors (222012631).

155630362229 is an equidigital number, since it uses as much as digits as its factorization.

155630362229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222012630.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 155630362229 in words is "one hundred fifty-five billion, six hundred thirty million, three hundred sixty-two thousand, two hundred twenty-nine".