10205156226561 has 8 divisors (see below), whose sum is σ = 13607237688480. Its totient is φ = 6803256124512.

The previous prime is 10205156226547. The next prime is 10205156226569. The reversal of 10205156226561 is 16562265150201.

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

It is not a de Polignac number, because 10205156226561 - 2⁹ = 10205156226049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10205156226569) 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, 45208615 + ... + 45433788.

It is an arithmetic number, because the mean of its divisors is an integer number (1700904711060).

Almost surely, 2^{10205156226561} is an apocalyptic number.

It is an amenable number.

10205156226561 is a deficient number, since it is larger than the sum of its proper divisors (3402081461919).

10205156226561 is an equidigital number, since it uses as much as digits as its factorization.

10205156226561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90679935.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 10205156226561 in words is "ten trillion, two hundred five billion, one hundred fifty-six million, two hundred twenty-six thousand, five hundred sixty-one".