2061021077745 has 128 divisors (see below), whose sum is σ = 4127649103872. Its totient is φ = 856380211200.

The previous prime is 2061021077729. The next prime is 2061021077783. The reversal of 2061021077745 is 5477701201602.

It is not a de Polignac number, because 2061021077745 - 2⁴ = 2061021077729 is a prime.

It is a super-3 number, since 3×2061021077745³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2061021077697 and 2061021077706.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26909905 + ... + 26986385.

It is an arithmetic number, because the mean of its divisors is an integer number (32247258624).

Almost surely, 2^{2061021077745} is an apocalyptic number.

It is an amenable number.

2061021077745 is an abundant number, since it is smaller than the sum of its proper divisors (2066628026127).

2061021077745 is a wasteful number, since it uses less digits than its factorization.

2061021077745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77031.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 2061021077745 in words is "two trillion, sixty-one billion, twenty-one million, seventy-seven thousand, seven hundred forty-five".