126360644402 has 4 divisors (see below), whose sum is σ = 189540966606. Its totient is φ = 63180322200.

The previous prime is 126360644381. The next prime is 126360644407. The reversal of 126360644402 is 204446063621.

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

It can be written as a sum of positive squares in only one way, i.e., 77467032241 + 48893612161 = 278329^2 + 221119^2 .

It is not an unprimeable number, because it can be changed into a prime (126360644407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31590161099 + ... + 31590161102.

Almost surely, 2^126360644402 is an apocalyptic number.

126360644402 is a deficient number, since it is larger than the sum of its proper divisors (63180322204).

126360644402 is an equidigital number, since it uses as much as digits as its factorization.

126360644402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63180322203.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 126360644402 in words is "one hundred twenty-six billion, three hundred sixty million, six hundred forty-four thousand, four hundred two".