145855540869 has 8 divisors (see below), whose sum is σ = 194829585120. Its totient is φ = 97059261936.

The previous prime is 145855540841. The next prime is 145855540921. The reversal of 145855540869 is 968045558541.

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

It is not a de Polignac number, because 145855540869 - 2⁷ = 145855540741 is a prime.

It is a super-2 number, since 2×145855540869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145855540829) 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, 44439414 + ... + 44442695.

It is an arithmetic number, because the mean of its divisors is an integer number (24353698140).

Almost surely, 2^145855540869 is an apocalyptic number.

It is an amenable number.

145855540869 is a deficient number, since it is larger than the sum of its proper divisors (48974044251).

145855540869 is an equidigital number, since it uses as much as digits as its factorization.

145855540869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88882659.

The product of its (nonzero) digits is 34560000, while the sum is 60.

The spelling of 145855540869 in words is "one hundred forty-five billion, eight hundred fifty-five million, five hundred forty thousand, eight hundred sixty-nine".