20701541402 has 4 divisors (see below), whose sum is σ = 31052312106. Its totient is φ = 10350770700.

The previous prime is 20701541389. The next prime is 20701541423. The reversal of 20701541402 is 20414510702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15850558201 + 4850983201 = 125899^2 + 69649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5175385349 + ... + 5175385352.

Almost surely, 2^20701541402 is an apocalyptic number.

20701541402 is a deficient number, since it is larger than the sum of its proper divisors (10350770704).

20701541402 is a wasteful number, since it uses less digits than its factorization.

20701541402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350770703.

The product of its (nonzero) digits is 2240, while the sum is 26.

The spelling of 20701541402 in words is "twenty billion, seven hundred one million, five hundred forty-one thousand, four hundred two".