120653765346551 has 4 divisors (see below), whose sum is σ = 127751045661072. Its totient is φ = 113556485032032.

The previous prime is 120653765346539. The next prime is 120653765346571. The reversal of 120653765346551 is 155643567356021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120653765346551 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 (120653765346571) 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, 3548640157235 + ... + 3548640157268.

It is an arithmetic number, because the mean of its divisors is an integer number (31937761415268).

Almost surely, 2^{120653765346551} is an apocalyptic number.

120653765346551 is a deficient number, since it is larger than the sum of its proper divisors (7097280314521).

120653765346551 is an equidigital number, since it uses as much as digits as its factorization.

120653765346551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097280314520.

The product of its (nonzero) digits is 68040000, while the sum is 59.

The spelling of 120653765346551 in words is "one hundred twenty trillion, six hundred fifty-three billion, seven hundred sixty-five million, three hundred forty-six thousand, five hundred fifty-one".