11957100073216 has 27 divisors (see below), whose sum is σ = 23867603161591. Its totient is φ = 5978522373376.

The previous prime is 11957100073211. The next prime is 11957100073249. The reversal of 11957100073216 is 61237000175911.

The square root of 11957100073216 is 3457904.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11957100073211) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 55218405 + ... + 55434523.

Almost surely, 2^{11957100073216} is an apocalyptic number.

11957100073216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11957100073216 is the 3457904-th square number.

It is an amenable number.

11957100073216 is a deficient number, since it is larger than the sum of its proper divisors (11910503088375).

11957100073216 is an frugal number, since it uses more digits than its factorization.

11957100073216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432254 (or 216121 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 43.

The spelling of 11957100073216 in words is "eleven trillion, nine hundred fifty-seven billion, one hundred million, seventy-three thousand, two hundred sixteen".