4161440637357 has 4 divisors (see below), whose sum is σ = 5548587516480. Its totient is φ = 2774293758236.

The previous prime is 4161440637323. The next prime is 4161440637469. The reversal of 4161440637357 is 7537360441614.

It is a happy number.

4161440637357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4161440637357 - 2¹² = 4161440633261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161440630357) 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, 693573439557 + ... + 693573439562.

It is an arithmetic number, because the mean of its divisors is an integer number (1387146879120).

Almost surely, 2^{4161440637357} is an apocalyptic number.

It is an amenable number.

4161440637357 is a deficient number, since it is larger than the sum of its proper divisors (1387146879123).

4161440637357 is a wasteful number, since it uses less digits than its factorization.

4161440637357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387146879122.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 4161440637357 in words is "four trillion, one hundred sixty-one billion, four hundred forty million, six hundred thirty-seven thousand, three hundred fifty-seven".