11720244878354 has 16 divisors (see below), whose sum is σ = 17912323463040. Its totient is φ = 5749473490800.

The previous prime is 11720244878347. The next prime is 11720244878431. The reversal of 11720244878354 is 45387844202711.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11720244878354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7208129 + ... + 8683179.

It is an arithmetic number, because the mean of its divisors is an integer number (1119520216440).

Almost surely, 2^{11720244878354} is an apocalyptic number.

11720244878354 is a deficient number, since it is larger than the sum of its proper divisors (6192078584686).

11720244878354 is a wasteful number, since it uses less digits than its factorization.

11720244878354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550065.

The product of its (nonzero) digits is 12042240, while the sum is 56.

The spelling of 11720244878354 in words is "eleven trillion, seven hundred twenty billion, two hundred forty-four million, eight hundred seventy-eight thousand, three hundred fifty-four".