41201621555 has 4 divisors (see below), whose sum is σ = 49441945872. Its totient is φ = 32961297240.

The previous prime is 41201621551. The next prime is 41201621563. The reversal of 41201621555 is 55512610214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55512610214 = 2 ⋅27756305107.

It is not a de Polignac number, because 41201621555 - 2² = 41201621551 is a prime.

It is a super-2 number, since 2×41201621555² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41201621551) 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, 4120162151 + ... + 4120162160.

It is an arithmetic number, because the mean of its divisors is an integer number (12360486468).

Almost surely, 2^41201621555 is an apocalyptic number.

41201621555 is a deficient number, since it is larger than the sum of its proper divisors (8240324317).

41201621555 is an equidigital number, since it uses as much as digits as its factorization.

41201621555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240324316.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 41201621555 in words is "forty-one billion, two hundred one million, six hundred twenty-one thousand, five hundred fifty-five".