61001192481541 has 16 divisors (see below), whose sum is σ = 68851816758144. Its totient is φ = 53623313308224.

The previous prime is 61001192481539. The next prime is 61001192481577. The reversal of 61001192481541 is 14518429110016.

It is a cyclic number.

It is not a de Polignac number, because 61001192481541 - 2¹ = 61001192481539 is a prime.

It is a super-2 number, since 2×61001192481541² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001192481521) 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, 449309586 + ... + 449445331.

It is an arithmetic number, because the mean of its divisors is an integer number (4303238547384).

Almost surely, 2^{61001192481541} is an apocalyptic number.

It is an amenable number.

61001192481541 is a deficient number, since it is larger than the sum of its proper divisors (7850624276603).

61001192481541 is a wasteful number, since it uses less digits than its factorization.

61001192481541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898755180.

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 61001192481541 in words is "sixty-one trillion, one billion, one hundred ninety-two million, four hundred eighty-one thousand, five hundred forty-one".