11720457505151 has 4 divisors (see below), whose sum is σ = 11732577937872. Its totient is φ = 11708337072432.

The previous prime is 11720457505109. The next prime is 11720457505153. The reversal of 11720457505151 is 15150575402711.

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

It is a cyclic number.

It is not a de Polignac number, because 11720457505151 - 2¹⁴ = 11720457488767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11720457505153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060214910 + ... + 6060216843.

It is an arithmetic number, because the mean of its divisors is an integer number (2933144484468).

Almost surely, 2^{11720457505151} is an apocalyptic number.

11720457505151 is a deficient number, since it is larger than the sum of its proper divisors (12120432721).

11720457505151 is an equidigital number, since it uses as much as digits as its factorization.

11720457505151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120432720.

The product of its (nonzero) digits is 245000, while the sum is 44.

The spelling of 11720457505151 in words is "eleven trillion, seven hundred twenty billion, four hundred fifty-seven million, five hundred five thousand, one hundred fifty-one".