61033033455261 has 16 divisors (see below), whose sum is σ = 93003198319104. Its totient is φ = 34875838864944.

The previous prime is 61033033455227. The next prime is 61033033455311. The reversal of 61033033455261 is 16255433033016.

It is not a de Polignac number, because 61033033455261 - 2¹³ = 61033033447069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61033033455461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295591 + ... + 11529396.

It is an arithmetic number, because the mean of its divisors is an integer number (5812699894944).

Almost surely, 2^{61033033455261} is an apocalyptic number.

It is an amenable number.

61033033455261 is a deficient number, since it is larger than the sum of its proper divisors (31970164863843).

61033033455261 is a wasteful number, since it uses less digits than its factorization.

61033033455261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15021040.

The product of its (nonzero) digits is 583200, while the sum is 42.

Adding to 61033033455261 its reverse (16255433033016), we get a palindrome (77288466488277).

The spelling of 61033033455261 in words is "sixty-one trillion, thirty-three billion, thirty-three million, four hundred fifty-five thousand, two hundred sixty-one".