146609750261 has 4 divisors (see below), whose sum is σ = 157887423372. Its totient is φ = 135332077152.

The previous prime is 146609750251. The next prime is 146609750317. The reversal of 146609750261 is 162057906641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162057906641 = 227 ⋅713911483.

It can be written as a sum of positive squares in 2 ways, for example, as 84932027761 + 61677722500 = 291431^2 + 248350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146609750261 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 (146609750251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5638836536 + ... + 5638836561.

It is an arithmetic number, because the mean of its divisors is an integer number (39471855843).

Almost surely, 2^146609750261 is an apocalyptic number.

It is an amenable number.

146609750261 is a deficient number, since it is larger than the sum of its proper divisors (11277673111).

146609750261 is a wasteful number, since it uses less digits than its factorization.

146609750261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11277673110.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 146609750261 in words is "one hundred forty-six billion, six hundred nine million, seven hundred fifty thousand, two hundred sixty-one".