126204123651 has 8 divisors (see below), whose sum is σ = 168322513920. Its totient is φ = 84110907912.

The previous prime is 126204123641. The next prime is 126204123691. The reversal of 126204123651 is 156321402621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126204123651 - 2¹³ = 126204115459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126204123631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6281931 + ... + 6301988.

It is an arithmetic number, because the mean of its divisors is an integer number (21040314240).

Almost surely, 2^126204123651 is an apocalyptic number.

126204123651 is a deficient number, since it is larger than the sum of its proper divisors (42118390269).

126204123651 is a wasteful number, since it uses less digits than its factorization.

126204123651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12587265.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 126204123651 in words is "one hundred twenty-six billion, two hundred four million, one hundred twenty-three thousand, six hundred fifty-one".