120637434153657 has 8 divisors (see below), whose sum is σ = 160849985198560. Its totient is φ = 80424919605600.

The previous prime is 120637434153619. The next prime is 120637434153697. The reversal of 120637434153657 is 756351434736021.

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

It is not a de Polignac number, because 120637434153657 - 2¹⁰ = 120637434152633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120637434153597 and 120637434153606.

It is not an unprimeable number, because it can be changed into a prime (120637434153697) 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, 150844 + ... + 15533757.

It is an arithmetic number, because the mean of its divisors is an integer number (20106248149820).

Almost surely, 2^{120637434153657} is an apocalyptic number.

It is an amenable number.

120637434153657 is a deficient number, since it is larger than the sum of its proper divisors (40212551044903).

120637434153657 is a wasteful number, since it uses less digits than its factorization.

120637434153657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18248423.

The product of its (nonzero) digits is 38102400, while the sum is 57.

Adding to 120637434153657 its reverse (756351434736021), we get a palindrome (876988868889678).

The spelling of 120637434153657 in words is "one hundred twenty trillion, six hundred thirty-seven billion, four hundred thirty-four million, one hundred fifty-three thousand, six hundred fifty-seven".