126206321604 has 24 divisors (see below), whose sum is σ = 321252455328. Its totient is φ = 38244339840.

The previous prime is 126206321599. The next prime is 126206321611. The reversal of 126206321604 is 406123602621.

It is a super-2 number, since 2×126206321604² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 478054117 + ... + 478054380.

It is an arithmetic number, because the mean of its divisors is an integer number (13385518972).

Almost surely, 2^126206321604 is an apocalyptic number.

It is an amenable number.

126206321604 is an abundant number, since it is smaller than the sum of its proper divisors (195046133724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126206321604 is a wasteful number, since it uses less digits than its factorization.

126206321604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956108515 (or 956108513 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 126206321604 in words is "one hundred twenty-six billion, two hundred six million, three hundred twenty-one thousand, six hundred four".